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} }