Jones, Ross McCallum. 1998. The Boko/Busa Language Cluster. (LINCOM Studies in African Linguistics, 30.) München: Lincom. xi+353pp.
@book{gJonesBokoBusa, author = {Jones, Ross McCallum}, pages = {xi+353}, publisher = {München: Lincom}, series = {LINCOM Studies in African Linguistics}, title = {The Boko/Busa Language Cluster}, volume = {30}, year = {1998} }