Yo are using biblatex-apa, which requires biber since version 4.5. That means, that you have to run biber instead of bibtex (or use latexmk or arara to automate the buid process).
If I understood you correctly, you want to turn off sentence case, this can be done with:
\DeclareFieldFormat{apacase}{#1}
In order to set the language to dutch you have to set the language mapping accordingly:
\DeclareLanguageMapping{dutch}{dutch-apa}
Now "g.d." is printed, when no date is given. You can change that to "z.d." if you want to by redefining the nodate-string:
\DefineBibliographyStrings{dutch}{%
nodate = {z.d.}
}
You have to modify the stings retrieved and from to obtain the desired result for visited URLs:
\DefineBibliographyStrings{dutch}{%
retrieved = {geraadpleegd op},
from = {},
}
Also note, that if you want to use an institution like "The Guardian" as author, you have to put an additional pair of curly brackets around it (or "The" will be interpreted as a first name):
author = {{The Guardian}}
Putting it all together (and leaving some ornamental code out) will look like this:
\documentclass[a4paper]{report}
\usepackage[dutch]{babel}
\usepackage{csquotes, url}
\usepackage[backend=biber,
citestyle=verbose-ibid,
urldate=short,
style=apa]{biblatex}
\DeclareLanguageMapping{dutch}{dutch-apa}
\NewBibliographyString{retrieved}
\NewBibliographyString{from}
\DefineBibliographyStrings{dutch}{%
nodate = {z.d.},
retrieved = {geraadpleegd op},
from = {},
}
\DeclareFieldFormat{apacase}{#1}
\DeclareBibliographyCategory{websites}
\DeclareBibliographyCategory{spoken}
\DeclareBibliographyCategory{books}
\AtEveryCitekey{%
\ifentrytype{misc}{%
\iffieldundef{howpublished}{%
\addtocategory{websites}{\thefield{entrykey}}%
}{%
\addtocategory{spoken}{\thefield{entrykey}}%
}%
}{%
}%
}
\AtEveryCitekey{%
\ifentrytype{book}{%
\addtocategory{books}{\thefield{entrykey}}%
}{}%
}
\let\footcite\footfullcite
% --- adding the bibliography
\begin{filecontents}{main.bib}
%books
@book{menger1,
author = {Menger, C.},
title = {Grunds{\"a}tze der Volkswirtschaftslehre},
publisher = {Braum{\"u}ller},
location = {Wenen},
year = {1982}
}
%spoken
@misc{shrem3,
author = "Shrem, C.",
month = jan,
year = "2014",
howpublished = "Webwinkel Vakdagen"
}
@misc{wences1,
author = "Casares, W.",
title = "Getting to a Billion Bitcoin Users",
month = may,
year = "2014",
howpublished = "Bitcoin2014 congres"
}
%websites
@misc{guardian3,
author = {{The Guardian}},
title = {Cyprus banks remain closed to prevent run on deposits},
url = "http://www.theguardian.com/world/2013/mar/26/cyprus-banks-closed-prevent-run-deposits",
year = "2010",
urldate = "2014-11-15"
}
@misc{paper1,
author = {Nakamoto, S.},
title = {Bitcoin: A Peer-to-Peer Electronic Cash System},
url = "http://bitcoin.org/bitcoin.pdf",
year = "2009",
urldate = "2015-02-16"
}
% nodate variants
%books
@book{menger1nd,
author = {Menger, C.},
title = {Grunds{\"a}tze der Volkswirtschaftslehre},
publisher = {Braum{\"u}ller},
location = {Wenen},
}
%spoken
@misc{shrem3nd,
author = "Shrem, C.",
title = "",
month = jan,
howpublished = "Webwinkel Vakdagen"
}
@misc{wences1nd,
author = "Casares, W.",
title = "Getting to a Billion Bitcoin Users",
howpublished = "Bitcoin2014 congres"
}
%websites
@misc{guardian3nd,
author = {{The Guardian}},
title = {Cyprus banks remain closed to prevent run on deposits},
url = "http://www.theguardian.com/world/2013/mar/26/cyprus-banks-closed-prevent-run-deposits",
urldate = "2014-11-15"
}
@misc{paper1nd,
author = {Nakamoto, S.},
title = {Bitcoin: A Peer-to-Peer Electronic Cash System},
url = "http://bitcoin.org/bitcoin.pdf",
urldate = "2015-02-16"
}
\end{filecontents}
\addbibresource{main.bib}
\begin{document}
With year:
a\footcite{menger1} b\footcite{shrem3} c\footcite{guardian3} d\footcite{paper1} e\footcite{wences1}
Without year:
a\footcite{menger1nd} b\footcite{shrem3nd} c\footcite{guardian3nd} d\footcite{paper1nd} e\footcite{wences1nd}
\chapter*{Literatuurlijst}
\addcontentsline{toc}{chapter}{Literatuurlijst}
\section*{Boeken}
\printbibliography[category=books,heading=none]
\section*{Online artikelen}
\printbibliography[category=websites,heading=none]
\section*{Conferenties}
\printbibliography[category=spoken,heading=none]
\end{document}
And the output:
Assuming you want to stick with natbib-style citation commands and BibTeX and wish to adhere to the current set of formatting guidelines of the APA, you may want to look into (a) loading the apacite package with the option natbibapa and (b) specifying apacite as the bibliography style. Passing the option natbibapa to the apacite package ensures that you can continue to use \citet and \citep.
Assuming you're also loading the babel package with the option ngerman, this setup should give you German-based citation call-outs and bibliography formatting features.
After making these changes, be sure (a) to delete all aux files and (b) rerun LaTeX, BibTeX, and LaTeX twice more so that the changes are propagated fully.
\RequirePackage{filecontents}
%% Set up 3 test entries
\begin{filecontents}{mybib.bib}
@article{a,
author = "Anne Author",
title = "Thoughts",
journal = "Circularity Today",
year = 3001,
volume = 1,
number = 2,
pages = "3--4",
}
@article{b,
author = "Anne Author and Bert Buthor",
title = "Further Thoughts",
journal = "Circularity Today",
year = 3005,
volume = 5,
number = 6,
pages = "7--8",
}
@article{c,
author = "Anne Author and Bert Buthor and Carla Cuthor",
title = "Final Thoughts",
journal = "Circularity Today",
year = 3009,
volume = 9,
number = 10,
pages = "11--12",
}
\end{filecontents}
\documentclass{article}
\usepackage[a4paper,margin=2.5cm]{geometry}
\usepackage[ngerman]{babel}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{lmodern}
\usepackage[natbibapa]{apacite}
\bibliographystyle{apacite}
\begin{document}
\citet{a}, \citet{b}, \citet{c}
\citep{a}, \citep{b}, \citep{c}
\bibliography{mybib}
\end{document}
Best Answer
Three suggestions:
Don't load both the
apaciteand thenatbibpackages; instead, run eitheror
(Use the latter if you wish to use the natbib-like citation commands, e.g.,
\citetand\citep).Do familiarize yourself with the user guide of the
apacitepackage. In particular, the user guide provides lots more information about all options (includingnatbibapa) that the package recognizes.Don't use the bibliography style named
apa-- it dates back to 1992. Really! Instead, runfor a bibliography style that implements version 6.03 of the APA guide.
Incidentally, your sample bib entry -- which I assume you downloaded from some Internet repository -- contains two serious errors: The field named
Urldateshould be namedUrl(after all, the contents of field are a URL string, not a date...), and the field currently namedLastcheckedshould be namedUrldate. Moral of the story: Don't place unfounded trust and confidence in material obtained "from the Internet". By all means, verify. I've made two further adjustments in the bib entry: In thetitlefield, I've placed curly braces around the words "Epistemic" and "Mediterranean, so that they won't be typeset as "epistemic" and "mediterranean", and I've changed-to--in thepagesfield, to instruct LaTeX to create a proper en-dash.