Esler, A. (1996). The human venture: A world history from prehistory to the present (3rd ed.). Prentice Hall.
Chicago-viite (17. p.)Esler, Anthony. The Human Venture: A World History from Prehistory to the Present. 3rd ed. Upper Saddle River, N.J: Prentice Hall, 1996.
MLA-viite (9. p.)Esler, Anthony. The Human Venture: A World History from Prehistory to the Present. 3rd ed. Prentice Hall, 1996.
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