Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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