Cita APA (7th ed.)

Hughes, J. D. (2015). The face of the earth: Environment and world history. Routledge.

Cita Chicago (17th ed.)

Hughes, J. Donald. The Face of the Earth: Environment and World History. Oxfordshire, [England] ; New York, New York: Routledge, 2015.

Cita MLA (9th ed.)

Hughes, J. Donald. The Face of the Earth: Environment and World History. Routledge, 2015.