# How to get () instead of [] in bibliography list? [duplicate]

I would like to use round parentheses () instead of square brackets [] for citations in a document that I'm working on. I figured out how to get them in the text using the round option with natbib. I can't figure out to have the generated bibliography to show () instead of [] when it lists the references. What do I need to change to fix the way it formats the bibliography?

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Similar to tex.stackexchange.com/questions/14183/… (and probably others). –  Joseph Wright Aug 13 '12 at 7:55

## marked as duplicate by lockstep, Thorsten, cgnieder, percusse, Marco DanielAug 15 '12 at 15:57

Add this to the preamble:

\makeatletter
\renewcommand\@biblabel[1]{(#1)}
\makeatother


A minimal example:

\begin{filecontents*}{xxyyzz.bib}
@article{author12,
author = "The Author",
title = "The Title",
journal = "The journal",
year = "2012"
}
\end{filecontents*}

\documentclass{article}
\usepackage[round,numbers]{natbib}

\makeatletter
\renewcommand\@biblabel[1]{(#1)}
\makeatother

\begin{document}

\cite{author12}

\bibliographystyle{plainnat}
\bibliography{xxyyzz}

\end{document}


The resulting document:

The above method will work whether using natbib or not; as Torbjørn T mentions, with natbib you can simply say

\renewcommand\bibnumfmt[1]{(#1)}


to obtain the same result.

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The builtin natbib way would be \renewcommand{\bibnumfmt}[1]{(#1)}. See section 2.12 Other formatting options, page 15 in the manual. –  Torbjørn T. Aug 13 '12 at 6:42
@TorbjørnT. I updated my answer adding your suggestion. Thank you! –  Gonzalo Medina Aug 13 '12 at 12:56
Thanks, Everyone! –  Phillip Aug 22 '12 at 22:05
@Phillip you're welcome! Don't forget to accept the answer (click on the checkmark to the left, below the vote count). –  Gonzalo Medina Aug 22 '12 at 22:09