Online Books by
Leon Campbell
(Campbell, Leon, 1881-1951)
Books from the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Campbell, Leon, 1881-1951: Observations of three hundred and twenty-eight variable stars during the years 1906-1910. (The Observatory, 1912) (page images at HathiTrust)- Campbell, Leon, 1881-1951: Observations of three hundred and twenty-three variable stars during the years 1911-1916 (Cambridge, Mass. : The Observatory, 1913., 1918) (page images at HathiTrust)
- Campbell, Leon, 1881-1951: The story of variable stars (The Blakiston company, 1946), also by Luigi G. Jacchia (page images at HathiTrust)
- Campbell, Leon, 1881-1951: The story of variable stars (The Blakiston company, 1941), also by Luigi G. Jacchia (page images at HathiTrust)
- Campbell, Leon, 1881-1951: Studies of long period variables. Leon Campbell ; prepared for publication by Margaret Walton Mayall. (American Association of Variable Star Observers, 1955), also by American Association of Variable Star Observers (page images at HathiTrust)
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