Crewe, W. J. 1975. The Phonological Features of the Ingessana Language. Khartoum: Institute of African and Asian Studies, University of Khartoum.
@book{Crewe-1975, address = {Khartoum}, author = {Crewe, W. J.}, publisher = {Institute of African and Asian Studies, University of Khartoum}, title = {The Phonological Features of the Ingessana Language}, year = {1975}, iso_code = {tbi}, olac_field = {general_linguistics; phonetics; typology; phonology}, wals_code = {igs} }