APA

Onwueme I., . (1978). The tropical tuber crops : yams, cassava, sweet potato, and cocoyams. Chichester: John Wiley & Sons.

Chicago

Onwueme I.c, . 1978. The tropical tuber crops : yams, cassava, sweet potato, and cocoyams. Chichester: John Wiley & Sons.

Harvard

Onwueme I., . (1978). The tropical tuber crops : yams, cassava, sweet potato, and cocoyams. Chichester: John Wiley & Sons.

MLA

Onwueme I.c, . The tropical tuber crops : yams, cassava, sweet potato, and cocoyams. Chichester: John Wiley & Sons. 1978.