Citazione APA

Barkers, E. (1927). National character and the factors in its formation. New York: Harper & Brothers Publishers.

Stile di citazione Chicago

Barkers, Ernest. National Character and the Factors in Its Formation. New York: Harper & Brothers Publishers, 1927.

Citazione MLA

Barkers, Ernest. National Character and the Factors in Its Formation. New York: Harper & Brothers Publishers, 1927.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.