APA (7th ed.) Citation

Masser, J., & Gould, W. T. (1975). Inter-regional migration in tropical Africa.

Chicago Style (17th ed.) Citation

Masser, Jan, and William T. Gould. Inter-regional Migration in Tropical Africa. London, 1975.

MLA (9th ed.) Citation

Masser, Jan, and William T. Gould. Inter-regional Migration in Tropical Africa. 1975.