APA

Clifford N. J., Cope M., Gillepsie T. & French S. (2016). Key methods in geography. Los Ángeles (California, Estados Unidos): SAGE.

Chicago

Clifford Nicholas J, Cope Meghan, Gillepsie Thomas and French Shaun. 2016. Key methods in geography. Los Ángeles (California, Estados Unidos): SAGE.

Harvard

Clifford N. J., Cope M., Gillepsie T. and French S. (2016). Key methods in geography. Los Ángeles (California, Estados Unidos): SAGE.

MLA

Clifford Nicholas J, Cope Meghan, Gillepsie Thomas and French Shaun. Key methods in geography. Los Ángeles (California, Estados Unidos): SAGE. 2016.