I have problem with biblatex-chicago package. When the article does not have a volume number, the reference generated has a missing space before number page. I provide a MWE as below. Please help me! I have tried for a long time, but did not find a solution.
\documentclass[american]{article}
\usepackage[utf8]{inputenc}
\usepackage{babel,csquotes}
\usepackage[backend=biber,authordate]{biblatex-chicago}
\usepackage{filecontents}
\begin{filecontents}{\jobname.bib}
@ARTICLE{adams1887,
author = {Adams, Henry Carter},
title = {Relation of the State to Industrial Action},
journaltitle = {Publications of the American Economic Association},
date = {1887},
volume = {1},
number = {6},
pages = {7--85}
}
@article{chan1999hukou,
title={The Hukou System and Rural-urban Migration in China: Processes and Changes},
author={Chan, Kam Wing and Zhang, Li},
journal={China Quarterly},
volume={160},
pages={818--855},
year={1999},
publisher={Cambridge University Press}
}
\end{filecontents}
\addbibresource{\jobname.bib}
\begin{document}
Example.
\nocite{*}
\printbibliography
\end{document}
