Cita APA (7a ed.)

CHISHOLM, M. (1975). Human geography: Evolution or revolution. Penguin.

Cita Chicago Style (17a ed.)

CHISHOLM, Michael. Human Geography: Evolution or Revolution. Harmondsworth: Penguin, 1975.

Cita MLA (9a ed.)

CHISHOLM, Michael. Human Geography: Evolution or Revolution. Penguin, 1975.