APA (7e ed.) Bronvermelding

Mabogunje, A. (1997). The state of Earth: Contemporary geographic perspectives (1a. ed.). Blackwell.

Chicago (17e ed.) Bronvermelding

Mabogunje, Akin. The State of Earth: Contemporary Geographic Perspectives. 1a. ed. Oxford: Blackwell, 1997.

MLA (9e ed.) Bronvermelding

Mabogunje, Akin. The State of Earth: Contemporary Geographic Perspectives. 1a. ed. Blackwell, 1997.