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  1. 1

    Modern astronomy expanding the universe. by Yount, Lisa

    Published 2006
    Book
  2. 2

    Scientific instruments by Wynter, Harriet

    Published 1975
    Book
  3. 3

    Tools of the astronomer by Miczaika, Gerhard Robert 1917-

    Published 1961
    Book
  4. 4

    The planetary equatorium.

    Published 1960
    Book
  5. 5
  6. 6

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