Citazione Stile APA (7a Edizione)

Onwueme, I. C., & Charles, W. B. (1994). Tropical root and tuber crops: Production, perspectives and future prospects. FAO of the United Nations.

Citazione stile Chigago Style (17a edizione)

Onwueme, I. C., e Winston B. Charles. Tropical Root and Tuber Crops: Production, Perspectives and Future Prospects. Rome: FAO of the United Nations, 1994.

Citatione MLA (9a ed.)

Onwueme, I. C., e Winston B. Charles. Tropical Root and Tuber Crops: Production, Perspectives and Future Prospects. FAO of the United Nations, 1994.