# How to remove extra space after volume number in References section

When I compile my manuscript, in the references section extra space is added after the volume number. My corrector told me to remove it, but the problem I don't know how to remove it.

MANUSCRIPT.TEX

\documentclass[man]{apa}
\usepackage{graphicx}
\usepackage{rotating}
\usepackage[dutch,english]{babel}

\makeatletter
\newcommand{\rmnum}[1]{\romannumeral #1}
\newcommand{\Rmnum}[1]{\expandafter\@slowromancap\romannumeral #1@}
\makeatother

\title{...}
\author{...}
\affiliation{...}

\abstract{...}
\acknowledgements{...}

\shorttitle{...}

\begin{document}
\maketitle

\section{...}

\bibliography{References}

\end{document}


References.bib

@ARTICLE{BergCollier1953,
author  = {Berg, I. A. and Collier, J. S.},
year    = {1953},
title   = {Personality and Group Differences in Extreme Response Sets},
journal = {Educational Psychological Measurement},
volume  = {13},
pages   = {164--169}
}

@ARTICLE{BergCollier1953,
author  = {Berg, I. A. and Collier, J. S.},
year    = {1953},
title   = {Personality and Group Differences in Extreme Response Sets},
journal = {Educational Psychological Measurement},
volume  = {13},
number  = {X},
pages   = {164--169}
}


OUTPUT

Berg, I. A., & Collier, J. S. (1953). Personality and group diﬀerences in extreme response sets. Educational Psychological Measurement, 13 , 164–169.

Berg, I. A., & Collier, J. S. (1953). Personality and group diﬀerences in extreme response sets. Educational Psychological Measurement, 13 (X), 164–169.

The extra space is added on every reference (see the X after the volume number).

Normally where the X stands a volume number is entered, like this 10(3). When I enter this volume number the comma is place directly after the 10(3).

I really hope that someone can help me!

I figured out that I must change apacite.bst. However, I need to find the exact solution.

PART OF APACITE.BST

% format journal, volume, number and pages
% call with
%   formatted.pages format.journal.vol.num.pages.check
%
FUNCTION { format.journal.vol.num.pages.check }
{ "journal" journal warning.if.empty
duplicate$empty$
journal    empty$and volume empty$ and
{ pop$"" } { "\APACjournalVolNumPages{" journal "" connect.check "}{" * volume "" connect.check "}{" * number "" connect.check "}{" * swap$   "" connect.check
"}"  *
}
if\$
}

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@Patrick: Welcome to tex.sx! It's not necessary to sign your questions (as there is already a box with your username below it) or to begin them with a greeting. –  lockstep Apr 9 '11 at 14:06
@Patrick Could you please post a full minimal working example? If I compile a document with this preamble, no extra space is added after the volume number. –  diabonas Apr 9 '11 at 14:09
@Patrick: What \bibliographystyle and what special bibliography packages, if any (e.g. natbib) do you use? A compilable example would be even be better. –  lockstep Apr 9 '11 at 14:12
@lockstep By default, apa.cls uses the apacite package by Erik Meijer for citations which offers complete coverage and excellent conformance to APA guidelines, including apacite handling of electronic sources and non-English language forms. You should count on using bibTeX with the corresponding apacite.bst style file for your bibliography. –  Patrick Apr 9 '11 at 14:50
Maybe I can make some changes to apacite.bst? –  Patrick Apr 9 '11 at 14:53

While updating I fixed the problem by replacing the new apacite.bst by an older version of apacite.bst. I simply downloaded it via Google. This is probably not the best solution, but it works for now :).
%% apacite.bst : reference list according to APA manual