Παραπομπή σε μορφή APA (7η εκδ.)

Valentine, G. (2015). Approaches to Human Geography: Philosophies, theories, people and practices (2nd ed.). Sage.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Valentine, Gill. Approaches to Human Geography: Philosophies, Theories, People and Practices. 2nd ed. New Delhi: Sage, 2015.

Παραπομπή σε μορφή MLA (9th εκδ.)

Valentine, Gill. Approaches to Human Geography: Philosophies, Theories, People and Practices. 2nd ed. Sage, 2015.