The Report of the Committee to Visit the Harvard College Observatory
| Autor: | Metcalf, Joel H., Agassiz, George R., Alden, George I., Bowditch, Ingersoll, Cross, Charles R., McCall, Samuel W., Parker, Herbert, Slocum, Frederick, Thomson, Elihu |
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| Zdroj: | Science, 1918 Apr 01. 47(1214), 335-337. |
| Databáze: | JSTOR Journals |
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