Παραπομπή σε μορφή APA (7η εκδ.)

Barker, E. (1928). National character and the factors in its formation: By Ernest Barker (2nd ed.). Methuen.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Barker, Ernest. National Character and the Factors in Its Formation: By Ernest Barker. 2nd ed. London: Methuen, 1928.

Παραπομπή σε μορφή MLA (8th εκδ.)

Barker, Ernest. National Character and the Factors in Its Formation: By Ernest Barker. 2nd ed. Methuen, 1928.