Sullivan, N. E., & Sullivan, M. W. (1963). Programmed astronomy. McGraw-Hill.
Chicago Style (17th ed.) CitationSullivan, Neil E., and Maurice W. Sullivan. Programmed Astronomy. New York: McGraw-Hill, 1963.
MLA citiranjeSullivan, Neil E., and Maurice W. Sullivan. Programmed Astronomy. McGraw-Hill, 1963.
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