Παραπομπή σε μορφή APA (7η εκδ.)

Hughes, B. B. (1997). Continuity and chance in world politics: Competing perspectives (3rd ed.). Prentice Hall.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hughes, Barry B. Continuity and Chance in World Politics: Competing Perspectives. 3rd ed. New Jersey: Prentice Hall, 1997.

Παραπομπή σε μορφή MLA (9th εκδ.)

Hughes, Barry B. Continuity and Chance in World Politics: Competing Perspectives. 3rd ed. Prentice Hall, 1997.