Wallbank. Civilization Past and Present (5th ed.). Cambridge / Routledge / Oxford.
Tohutoru Kātū Chicago (17th ed.)Wallbank. Civilization Past and Present. 5th ed. London / New York: Cambridge / Routledge / Oxford.
Tohutoro MLA (9th ed.)Wallbank. Civilization Past and Present. 5th ed. Cambridge / Routledge / Oxford.
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