The peoples of Southern Nigeria : a sketch of their history, ethnology and languages, with an abstract of the 1921 census.
- London : Oxford U.P., 1926.
Publ. for the Crown Agents for the Colonies.
V. 1. Historical notes -- v. 2. and 3. Ethnology -- v. 4. Linguistics and statistics.
Ethnology -- Nigeria.--Ethnology -- Nigeria.
Nigeria -- Description and travel.--Nigeria -- Description and travel. Nigeria -- History.--Nigeria -- History. Nigeria -- Languages.--Nigeria -- Languages.