Esler, A. (1986). The human venture: The globe encompassed. Prentice-Hall.
Tohutoru Kātū Chicago (17th ed.)Esler, Anthony. The Human Venture: The Globe Encompassed. New Jersey: Prentice-Hall, 1986.
Tohutoro MLA (9th ed.)Esler, Anthony. The Human Venture: The Globe Encompassed. Prentice-Hall, 1986.
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