Astronomy /
| Main Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
New York :
Macmillan,
1931.
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| Subjects: |
| Physical Description: | xxiii, 549 pages : frontispiece, illustrations, double plates, diagrams ; 23 cm. |
|---|---|
| Bibliography: | Bibliography at end of most of the chapters. |