APA-viite (7. p.)
Ewusie, J. Y. (1980). Elements of tropical ecology: With reference to the African, Asian, Pacific and new world tropics. HEB.
Chicago-viite (17. p.)
Ewusie, J. Yanney. Elements of Tropical Ecology: With Reference to the African, Asian, Pacific and New World Tropics. London: HEB, 1980.
MLA-viite (9. p.)
Ewusie, J. Yanney. Elements of Tropical Ecology: With Reference to the African, Asian, Pacific and New World Tropics. HEB, 1980.
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