Cerulli, Enrico. 1947. Three Berta Dialects in Western Ethiopia. Africa XVII(3). 156–169.
@article{cerulli1947berta, author = {Cerulli, Enrico}, journal = {Africa}, number = {3}, pages = {156–169}, title = {Three Berta Dialects in Western Ethiopia}, volume = {XVII}, year = {1947} }