Asher, R. E. & Moseley, C. J. (eds.) 2007. Atlas of the World’s languages (2nd Ed.) Abingdon, U.K.: Routledge.
@book{ashermoseley2007,
address = {Abingdon, U.K.},
editor = {Asher, R. E. & Moseley, C. J.},
publisher = {Routledge},
title = {Atlas of the World’s languages (2nd Ed.)},
year = {2007}
}