APA (7th ed.) Citation

Moore, E. D. (1931). Ivory: Scourge of Africa. Harper & brothers.

Chicago Style (17th ed.) Citation

Moore, Ernst D. Ivory: Scourge of Africa. New York London: Harper & brothers, 1931.

MLA (9th ed.) Citation

Moore, Ernst D. Ivory: Scourge of Africa. Harper & brothers, 1931.