APA (7th ed.) Zitazioa

Barber, J. D. (1972). The presidential character: Predicting performance in the White House. Prentice-Hall.

Chicago Style (17th ed.) Zitazioa

Barber, James David. The Presidential Character: Predicting Performance in the White House. Englewood Cliffs: Prentice-Hall, 1972.

MLA (9th ed.) Zitazioa

Barber, James David. The Presidential Character: Predicting Performance in the White House. Prentice-Hall, 1972.