Ley, W. (1969). Gas giants: The largest planets. McGraw-Hill.
Chicago Style (17. basım) AtıfLey, Willy. Gas Giants: The Largest Planets. New York: McGraw-Hill, 1969.
MLA (9th ed.) AtıfLey, Willy. Gas Giants: The Largest Planets. McGraw-Hill, 1969.
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