Hay, O. P. (1923). The Pleistocene of North America and its vertebrated animals.
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Chicago Style (17th ed.) Citation
Hay, Oliver Perry. The Pleistocene of North America and Its Vertebrated Animals. Washington, 1923.
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ציטוט MLA
Hay, Oliver Perry. The Pleistocene of North America and Its Vertebrated Animals. 1923.
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אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.