APA (7th ed.) Citation

Barbour, K. M. (1982). Nigeria in maps. Africana Pub. Co..

Chicago Style (17th ed.) Citation

Barbour, K. M. Nigeria in Maps. New York: Africana Pub. Co., 1982.

MLA (9th ed.) Citation

Barbour, K. M. Nigeria in Maps. Africana Pub. Co., 1982.