Citazione Stile APA (7a Edizione)

Mills, H. (1987). Twentieth century world history in focus (Repr.). Macmillan.

Citazione stile Chigago Style (17a edizione)

Mills, Harry. Twentieth Century World History in Focus. Repr. Basingstoke: Macmillan, 1987.

Citatione MLA (9a ed.)

Mills, Harry. Twentieth Century World History in Focus. Repr. Macmillan, 1987.