Todhunter, I. 1. (1962). A history of the mathematical theories of attraction and the figure of the earth: From the time of Newton to that of Laplace. New York: Dover Publications.

Todhunter, I. 1820-1884. A History of the Mathematical Theories of Attraction and the Figure of the Earth: From the Time of Newton to That of Laplace. New York: Dover Publications, 1962.

Todhunter, I. 1820-1884. A History of the Mathematical Theories of Attraction and the Figure of the Earth: From the Time of Newton to That of Laplace. New York: Dover Publications, 1962.