Cita APA

Onwuence, I. C., & Onwuence, I. C. (1978). The tropical tuber crops: Yams, cassava, sweet potato, and cocoyams. New York, New York: Willey.

Citación estilo Chicago

Onwuence, I. C., y I. C. Onwuence. The Tropical Tuber Crops: Yams, Cassava, Sweet Potato, and Cocoyams. New York, New York: Willey, 1978.

Cita MLA

Onwuence, I. C., y I. C. Onwuence. The Tropical Tuber Crops: Yams, Cassava, Sweet Potato, and Cocoyams. New York, New York: Willey, 1978.