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內容簡介: |
"Discusses the many theories behind the extinction of
dinosaurs and the techniques used by scientists to solve this great
mystery. ?Handsome washes instill the reptiles with character and
also convey a sense of mystery. A stellar offering." -- "BL."
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關於作者: |
Franklyn M. Branley was Astronomer Emeritus and former
Chairman of the American Museum-Hayden Planetarium. In 1960, he
originated the Let''s-Read-and-Find-Out Science series. Dr. Branley
was the author of over 150 science books for children.
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