APA (7th ed.) Citation

Perkins, W. A., & Stembridge, J. H. (1970). Nigeria: A descriptive geography (3. ed., 5. impression.). Oxford Univ. Press.

Chicago Style (17th ed.) Citation

Perkins, W. A., and Jasper Harry Stembridge. Nigeria: A Descriptive Geography. 3. ed., 5. impression. Ibadan: Oxford Univ. Press, 1970.

MLA (9th ed.) Citation

Perkins, W. A., and Jasper Harry Stembridge. Nigeria: A Descriptive Geography. 3. ed., 5. impression. Oxford Univ. Press, 1970.