# Extra space between volume and number using Biblatex and APA

I am using biblatex as I write using the APA format. My professor noted formatting issues with my citations- there is a space between the volume and number that shouldn't be there: 12(2) vs. 12 (2). For example, a citation should appear as:

Lock, R. M. & Hazari, Z. (2016). Discussing underrepresentation as a means to facilitating female students’ physics identity development. Physical Review Physics Education Research, 12(2), 020101.

What I'm getting right now is: Lock, R. M. & Hazari, Z. (2016). Discussing underrepresentation as a means to facilitating female students’ physics identity development. Physical Review Physics Education Research, 12 (2), 020101.

This issue is similar to the one described here, but I am using biblatex so the solution there doesn't work for me.

MWE: (first line won't show as code if I use 4 spaces- maybe it's too long? Tried using 4 spaces... ended up with backticks)

\documentclass[12pt,letterpaper,keeplastbox,man,donotrepeattitle,floatsintext]{apa6}

\usepackage[american]{babel}
\usepackage[utf8]{inputenc}
\usepackage[style=apa,natbib=true,backend=biber]{biblatex}
\DeclareLanguageMapping{american}{american-apa}
\author{MyName}
\title{ThisPaper}
\begin{document}
\maketitle
Lock and Hazari argued that \citep{lock_discussing_2016}
\printbibliography
\end{document}


Associated library file:

@article{lock_discussing_2016,
title = {Discussing Underrepresentation as a Means to Facilitating Female Students' Physics Identity Development},
volume = {12},
doi = {10.1103/PhysRevPhysEducRes.12.020101},
timestamp = {2017-03-28T01:44:08Z},
number = {2},
journaltitle = {Physical Review Physics Education Research},
author = {Lock, Robynne M. and Hazari, Zahra},
date = {2016},
pages = {020101},
file = {wiped},
groups = {wiped}
}


Screenshot: pdf output

• With up to date biblatex and biblatex-apa I do not get a space between the volume and number. Can you make sure to update all packages involved and try again. If the problem persists a screen shot would help. – moewe Apr 20 '17 at 14:16
• moewe- thanks for the suggestion. Just updated all the packages in MiKTeX and I'm still having the issue. I'll add a screenshot and the pdf file. – Chris Apr 20 '17 at 14:44
• There is no space in the screenshot and your PDF. I'm confused now. Do you want a space, or do you want no space? – moewe Apr 20 '17 at 14:48
• There is a space even though it doesn't look like it's there. Highlight the text in the pdf and copy it into word (or any other editor) and it shows up more clearly. I do not want a space. – Chris Apr 20 '17 at 14:52
• There is no space there. It might look a bit more space-y because of the italics (and italic correction!), but there definitely is no space. I checked with Sumatra PDF and got no space with copy and paste. If your editor has a space there that is because of its character mapping. – moewe Apr 20 '17 at 14:55

There is no proper space there. There is, however, a bit of additional kerning known as italic correction (What is the difference between \em and \emph?, How does italic correction work?). You can get rid of that with

\DeclareFieldFormat[article]{volume}{{\em\apanum{#1}}}


If you want use 'uncorrected \emph' more often, go with

\makeatletter
\protected\long\def\blx@imc@mkbibemphnc#1{%
{\em#1}\blx@imc@setpunctfont\emph}
\blx@regimcs{\mkbibemphnc}
\makeatother
\DeclareFieldFormat[article]{volume}{\mkbibemphnc{\apanum{#1}}}


to define a version of \mkbibemph called \mkbibemphnc without italic correction.

• moewe is correct- there was no space- just an artifact of the editor I was using to view the pdf. The code provided makes this more obvious. – Chris Apr 20 '17 at 15:00