# How do I suppress the “number” field in a bibliographic entry of type “@article”?

I am using latex together with the chicago style. I would like to suppress the number field (not page number but number of journal) in the bibliography. How do I do it?

\documentclass{article}
\usepackage{natbib}

\begin{document}
\bibliographystyle{chicago}
\bibliography{Bib_version_1}
\end{document}


Make a copy of chicago.bst (on a TeX Live system it will be found in /usr/local/texlive/<year>/texmf-dist/bibtex/bst/chicago/chicago.bst where <year> is the year of your distribution) and rename it something sensible like chicago-nonum.bst. Put this into your local texmf folder. On a TeX Live system it should go in <path-to-local-texmf>/bibtex/bst. See Create a local texmf tree in MiKTeX for MikTeX information. You should not save the new file in the same place as the original file. You can also put it in the same folder as your .tex document, although then it will only be available for documents in that folder.

In the copied file, find the function FUNCTION {format.jour.vol}

Within that function find the following snippet of code:

{ volume empty${"no volume for " cite$ * warning$"~(" * number * ")" * } { "~" * volume emphasize.space "(" * number * ")" * * } if$
}


And change it to:

{ volume empty${"no volume for " cite$ * warning$"~(" * number * ")" * } { "~" * volume emphasize.space * } if$
}


This will suppress printing the issue number from journal entries, when you use \bibliographystyle{chicago-nonum} in your document.