Cita APA (7a ed.)

Walmsley, D., & Lewis, G. (1984). Human geography: Behavioral approches. Longman.

Cita Chicago Style (17a ed.)

Walmsley, D.J, y G.J Lewis. Human Geography: Behavioral Approches. London [etc.]: Longman, 1984.

Cita MLA (9a ed.)

Walmsley, D.J, y G.J Lewis. Human Geography: Behavioral Approches. Longman, 1984.