APA (7th ed.) Zitazioa

Falkowski. Lawrence S. (1978). Presidents, secretaries of state, and crisesin U.S. Foreign relations: A model and predictive Analysis. Westview.

Chicago Style (17th ed.) Zitazioa

Falkowski. Lawrence S. Presidents, Secretaries of State, and Crisesin U.S. Foreign Relations: A Model and Predictive Analysis. Boulder, Colo: Westview, 1978.

MLA (9th ed.) Zitazioa

Falkowski. Lawrence S. Presidents, Secretaries of State, and Crisesin U.S. Foreign Relations: A Model and Predictive Analysis. Westview, 1978.