   1994 - Making Silent Stones Speak Human Evoluti (Hardcover) ISBN-13: 9780297814528 ISBN-10: 0297814524 ?  1993 - Making Silent Stones Speak Human Evolution and the Dawn of Technology (Hardcover) → Paperback ISBN-13: 9780671693718 ISBN-10: 0671693719 Genres: Nonfiction, Science & Math ? |
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