Cita APA (7th ed.)

Aitken, S. C., & Valentine, G. (2015). Approaches to human geography: Philosophies, theories, people and practices (Second edition.). SAGE.

Cita Chicago (17th ed.)

Aitken, Stuart C., i Gill Valentine. Approaches to Human Geography: Philosophies, Theories, People and Practices. Second edition. Los Angeles: SAGE, 2015.

Cita MLA (9th ed.)

Aitken, Stuart C., i Gill Valentine. Approaches to Human Geography: Philosophies, Theories, People and Practices. Second edition. SAGE, 2015.