Güldemann, Tom. 2008. The Macro-Sudan belt: towards identifying a linguistic area in northern sub-Saharan Africa. In Heine, Bernd and Nurse, Derek (eds.), A linguistic geography of Africa, 151-185. Cambridge: Cambridge University Press.
@incollection{jacquesestimative-guldeman08macrosudan, address = {Cambridge}, author = {Güldemann, Tom}, booktitle = {A linguistic geography of Africa}, editor = {Heine, Bernd and Nurse, Derek}, pages = {151-185}, publisher = {Cambridge University Press}, title = {The Macro-Sudan belt: towards identifying a linguistic area in northern sub-Saharan Africa}, year = {2008} }