Scholz, Hans-Juergen. 1977. Igbirra. In Kropp Dakubu, M. E. (ed.), West African language data sheets, vol. 1. Legon, Ghana: West African Linguistic Society.
@misc{3112, author = {Scholz, Hans-Juergen}, title = {Igbirra. In Kropp Dakubu, M. E. (ed.), West African language data sheets, vol. 1. Legon, Ghana: West African Linguistic Society.}, year = {1977} }