Style de citation APA (7e éd.)

Edited by Clifford, N. J. (2009). Key Concepts in Geography (2nd ed.). Sage.

Style de citation Chicago (17e éd.)

Edited by Clifford, Nicholas J. Key Concepts in Geography. 2nd ed. Chennai: Sage, 2009.

Style de citation MLA (9e éd.)

Edited by Clifford, Nicholas J. Key Concepts in Geography. 2nd ed. Sage, 2009.