| 载体形态 |
38 p : illus ; 22 cm. |
| 丛编 |
A William-Frederick juvenile
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| Bibliography |
Bibliography: p. 37-38. |
| Summary |
Summary: A brief introduction to many facets of elementary science, including the development of life on earth, earth's place in the solar system, weather phenomena, plant life, seasonal change, and the habits and behavior of some animals. |
| 主题 |
Science -- Juvenile literature.
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Science.
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