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{sinnemakizeromarking-Gueldemann2008, 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} }