Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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