Cita APA (7th ed.)

WALMSLEY, D., & LEWIS, G. (1984). Human geography: Behavioral approaches. Longman.

Cita Chicago (17th ed.)

WALMSLEY, D.J, i G.J LEWIS. Human Geography: Behavioral Approaches. London: Longman, 1984.

Cita MLA (9th ed.)

WALMSLEY, D.J, i G.J LEWIS. Human Geography: Behavioral Approaches. Longman, 1984.

Atenció: Aquestes cites poden no estar 100% correctes.