Cita APA (7a ed.)

Huggett, R., & Hugget, R. (2004). Physical geography: A human perspective. Arnold.

Cita Chicago Style (17a ed.)

Huggett, Richard, y Richard Hugget. Physical Geography: A Human Perspective. London: Arnold, 2004.

Cita MLA (9a ed.)

Huggett, Richard, y Richard Hugget. Physical Geography: A Human Perspective. Arnold, 2004.