3.
Pleistocene of the Middle Region of North America and Its Vertebrated Animals
by Hay, Oliver P.
ISBN: 9780608062051
List Price: $121.90
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The Recognition of Pleistocene Faunas (Classic Reprint)
by Hay, Oliver P., Oliver P Hay
ISBN: 9781334479175
List Price: $7.97
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Bibliography and Catalogue of the Fossil Vertebrata of North America
by Hay, Oliver P.
ISBN: 9780405057410
List Price: $64.95
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Recognition of Pleistocene Faunas (Classic Reprint)
by Hay, Oliver P.
ISBN: 9780656304455
List Price: $24.43