APA (7th ed.) Citation

Seligman, C. G., & Seligman, B. Z. (1950). Pagan tribes of the Nilotic Sudan. Humanities Press.

Chicago Style (17th ed.) Citation

Seligman, C. G., and Brenda Z. Seligman. Pagan Tribes of the Nilotic Sudan. New York: Humanities Press, 1950.

MLA (9th ed.) Citation

Seligman, C. G., and Brenda Z. Seligman. Pagan Tribes of the Nilotic Sudan. Humanities Press, 1950.