Kay, Paul and Maffi, Luisa. 2005. Colour terms. In WALS, 534–545.
@incollection{kaymaffi2005, author = {Kay, Paul and Maffi, Luisa}, booktitle = {WALS}, key = {Kay & Maffi 2005}, pages = {534–545}, title = {Colour terms}, year = {2005} }