Directory of astronomical observatories in the United States.
| Main Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
Ann Arbor, Mich. :
J.W. Edwards,
1947.
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| Subjects: |
| Physical Description: | x, 162 pages : illustrations, folded map. ; 21cm. |
|---|---|
| Bibliography: | "Principle sources": pages [ix]-x |