APA (7th ed.) Citation

Newton, R. R. (1976). Ancient planetary observations and the validity of ephemeris time. Johns Hopkins University Press.

Chicago Style (17th ed.) Citation

Newton, Robert R. Ancient Planetary Observations and the Validity of Ephemeris Time. Baltimore: Johns Hopkins University Press, 1976.

MLA (9th ed.) Citation

Newton, Robert R. Ancient Planetary Observations and the Validity of Ephemeris Time. Johns Hopkins University Press, 1976.