by Bertha Morris Parker ; checked for scientific accuracy by G. Van Biesbroeck ; cover photograph courtesy of Mount Wilson and Palomar Observatories

Harper & Row , 1966 , c1957 The basic science education series

所蔵館1館

Halton Arp

California Inst. of Technology 1966.

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by Bertha Morris Parker ; checked for scientific accuracy by G. Van Biesbroeck ; cover photograph courtesy of Mount Wilson and Palomar Observatories

Row, Peterson , 1961 , c1957 The basic science education series

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by F.H. Seares, J.C. Kapteyn and P.J. van Rhijn ; assisted by Mary C. Joyner and Myrtle L. Richmond

Carnegie Institution of Washington 1930 Carnegie Institution of Washington publication no. 402 , Papers of the Mount Wilson Observatory v. 4

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[Mount Wilson and Palomar Observatories] [19--]

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[s.n.]