Gaya APA

H, B, J., Ziegler, H, F. (2008). Traditions & Encounters: A Global Perspective on the Past . Boston: MCGRAW-HILL.

Gaya MLA

H, BENTLEY, Jerry., Ziegler, Herbert, F.. "Traditions & Encounters: A Global Perspective on the Past". Boston: MCGRAW-HILL, 2008. Text.