APA (7th ed.) Zitazioa

Pratt,. (1965). A history of United States foreign policy (2nd ed.). prentice-Hall.

Chicago Style (17th ed.) Zitazioa

Pratt. A History of United States Foreign Policy. 2nd ed. Englewood cliffs: prentice-Hall, 1965.

MLA (9th ed.) Zitazioa

Pratt. A History of United States Foreign Policy. 2nd ed. prentice-Hall, 1965.