| Author | : Allegheny Observatory |
| Publisher | : |
| Total Pages | : 560 |
| Release | : 1910 |
| Genre | : Astronomy |
| ISBN | : |
Consists of papers contributed to various astronomical journals and societies, annual reports of the Director, and special circulars and announcements issued by the Observatory
| Author | : Allegheny Observatory |
| Publisher | : |
| Total Pages | : 432 |
| Release | : 1910 |
| Genre | : Astronomy |
| ISBN | : |
Consists of papers contributed to various astronomical journals and societies, annual reports of the Director, and special circulars and announcements issued by the Observatory
| Author | : Cambridge University Library |
| Publisher | : |
| Total Pages | : 88 |
| Release | : 1914 |
| Genre | : Periodicals |
| ISBN | : |
| Author | : American Astronomical Society |
| Publisher | : |
| Total Pages | : 328 |
| Release | : 1915 |
| Genre | : Astronomy |
| ISBN | : |
