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			The sixth extinction : Patterns of life and the future of humankind / Richard Leakey and Roger Lewin. by Leakey, Richard E \| Lewin, Roger. Edition: 1st ed.Material type: Text; Format: print ; Literary form: Not fiction Publication details: New York : Doubleday, 1995Availability: Items available for loan: UMI Main Library (1) Call number: 304.2 LEA. Place hold Add to cart (remove)
			Origins reconsidered : In search of what makes us human / Richard Leakey and Roger Lewin. by Leakey, Richard E \| Lewin, Roger. Material type: Text; Format: print ; Literary form: Not fiction Publication details: New York : Doubleday, c1992Availability: Items available for loan: UMI Main Library (1) Call number: 113.8 LEA. Place hold Add to cart (remove)
			Origins reconsidered : in search of what makes us human / Richard Leakey and Roger Lewin. by Leakey, Richard \| Lewin, Roger. Material type: Text; Format: print ; Literary form: Not fiction Publication details: New York : Anchor Books, ©1992Availability: Not available: Withdrawn (1). Add to cart (remove)

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