[Tex/LaTex] Bibtex and Chicago style citations

Question

In the Chicago Manual of Style citation guidelines I find that one is to quote journal articles and italicize journals, books, and theses. But when I run the code below the output shows the journal article title as un-quoted. What's going on?

% test.tex
\documentclass{article}
\usepackage{natbib}
\begin{document}
  \nocite{*} 
  \bibliographystyle{chicago}
  \bibliography{test}
\end{document}

and

% test.bib
@phdthesis{Doe11,
  title={The Title},
  author={Doe, J.},
  year={2011},
  school={University of Mars}
},

@article{JohSil05,
  title={EbayesThresh: R programs for Empirical Bayes Thresholding},
  author={Johnstone, I.M. and Silverman, B.W.},
  journal={Journal of Statistical Software},
  volume={12},
  number={8},
  pages={1--38},
  year={2005}
},

@book{Joh11,
    title = {Gaussian estimation: Sequence and multiresolution models},
    author = {Johnstone, Ian M.},
    year = {2011},
},

Example from the manual:

Joshua I. Weinstein, “The Market in Plato’s Republic,” Classical Philology 104 (2009): 440.

Answer 1

You can use the biblatex-chicago package with some extra modifications to implement this fairly easily. The biblatex-chicago package recommends using biber for sorting instead of bibtex.

As some of the comments have noted, in the natural and behavioural sciences, I think quotation marks are rarely used.

\documentclass{article}
\usepackage[utf8]{inputenc}
\begin{filecontents}{\jobname.bib}
@phdthesis{Doe11,
  title={The Title},
  author={Doe, J.},
  year={2011},
  school={University of Mars}
},

@article{JohSil05,
  title={EbayesThresh: R programs for Empirical Bayes Thresholding},
  author={Johnstone, I.M. and Silverman, B.W.},
  journal={Journal of Statistical Software},
  volume={12},
  number={8},
  pages={1--38},
  year={2005}
},

@book{Joh11,
    title = {Gaussian estimation: Sequence and multiresolution models},
    author = {Johnstone, Ian M.},
    year = {2011},
}
\end{filecontents}
\usepackage[authordate]{biblatex-chicago}
\DeclareFieldFormat[article]{title}{\mkbibquote{#1}} % make article titles in quotes
\DeclareFieldFormat[thesis]{title}{\mkbibemph{#1}} % make theses italics
\addbibresource{\jobname.bib}
\begin{document}
\nocite{*}
\printbibliography
\end{document}