Gaya APA

Ewusie, J. (1980). Elements of tropical ecology:With reference to the Afican,Asian,Pasific and New world tropics (_). London: Badan Penerbit UNDIP.

Gaya MLA

Ewusie, J.Yanney. "Elements of tropical ecology:With reference to the Afican,Asian,Pasific and New world tropics". _ London: Badan Penerbit UNDIP, 1980. Text.