Corbett, Greville C. 2005b. Sex-based and non-sex-based gender systems. In WALS, 130-33.
@incollection{corbett2005b,
author = {Corbett, Greville C},
booktitle = {WALS},
key = {Corbett 2005b},
pages = {130-33},
title = {Sex-based and non-sex-based gender systems},
year = {2005b}
}