Παραπομπή σε μορφή APA (7η εκδ.)

Johnston, R. J. (1986). Philosophy and human geography: An introduction to contemporary approaches (2nd ed.). E. Arnold.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Johnston, R. J. Philosophy and Human Geography: An Introduction to Contemporary Approaches. 2nd ed. London: E. Arnold, 1986.

Παραπομπή σε μορφή MLA (9th εκδ.)

Johnston, R. J. Philosophy and Human Geography: An Introduction to Contemporary Approaches. 2nd ed. E. Arnold, 1986.