Forde, D. 1951. The Yoruba-speaking Peoples of Southwestern Nigeria. (Ethnographic survey of Africa, Western Africa, 4.) London: International African Inst. (IAI).
@book{forde1951,
address = {London},
author = {Forde, D.},
key = {Forde (1951)},
publisher = {London: International African Inst. (IAI)},
series = {Ethnographic survey of Africa, Western Africa},
title = {The Yoruba-speaking Peoples of Southwestern Nigeria},
volume = {4},
year = {1951}
}