Gaya APA

Andrew, M, K., Streeteu, O. (1976). The tropics and economic development (Cet. 2). Ballimore: The John Hopkins University Press.

Gaya MLA

Andrew, M., Kamarck,., Streeteu, Oaul. "The tropics and economic development". Cet. 2 Ballimore: The John Hopkins University Press, 1976. Text.