Παραπομπή σε μορφή APA (7η εκδ.)

Ewusie, J. Y. (1980). Elements of tropical ecology: With reference to the African, Asian, Pacific and new world tropics. HEB.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Ewusie, J. Yanney. Elements of Tropical Ecology: With Reference to the African, Asian, Pacific and New World Tropics. London: HEB, 1980.

Παραπομπή σε μορφή MLA (9th εκδ.)

Ewusie, J. Yanney. Elements of Tropical Ecology: With Reference to the African, Asian, Pacific and New World Tropics. HEB, 1980.