Citazione Stile APA (7a Edizione)

Squire, G. R. (1990). The physiology of tropical crop production. C.A.B. International.

Citazione stile Chigago Style (17a edizione)

Squire, G. R. The Physiology of Tropical Crop Production. Oxford: C.A.B. International, 1990.

Citatione MLA (9a ed.)

Squire, G. R. The Physiology of Tropical Crop Production. C.A.B. International, 1990.