Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (8a ed.)

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