Newton, R. R. (1976). Ancient planetary observations and the validity of ephemeris time. Johns Hopkins University Press.
Chicago Style (17. basım) AtıfNewton, Robert R. Ancient Planetary Observations and the Validity of Ephemeris Time. Baltimore: Johns Hopkins University Press, 1976.
MLA (8th ed.) AtıfNewton, Robert R. Ancient Planetary Observations and the Validity of Ephemeris Time. Johns Hopkins University Press, 1976.
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