APA (7e ed.) Bronvermelding

Simmons, I. (1989). Changing the face of the earth: Culture, environment, history. Basil Blackwell.

Chicago (17e ed.) Bronvermelding

Simmons, I.G. Changing the Face of the Earth: Culture, Environment, History. Cambridge, Mass.: Basil Blackwell, 1989.

MLA (9e ed.) Bronvermelding

Simmons, I.G. Changing the Face of the Earth: Culture, Environment, History. Basil Blackwell, 1989.