Simmons, I. (1989). Changing the face of the earth: Culture, environment, history. Basil Blackwell.
Cita Chicago Style (17a ed.)Simmons, I.G. Changing the Face of the Earth: Culture, Environment, History. Cambridge, Mass.: Basil Blackwell, 1989.
Cita MLA (9a ed.)Simmons, I.G. Changing the Face of the Earth: Culture, Environment, History. Basil Blackwell, 1989.
Precaución: Estas citas no son 100% exactas.