Webster, J., & Patterson, R. (1808). Elements of natural philosophy: Explaining the laws and principles of attraction, gravitation, mechanics ... [etc.] with a general view of the solar system. Philadelphia: B. and T. Kite, Fry and Kammerer, printers.

Webster, John., and Robert Patterson. Elements of Natural Philosophy: Explaining the Laws and Principles of Attraction, Gravitation, Mechanics ... [etc.] With a General View of the Solar System. Philadelphia: B. and T. Kite, Fry and Kammerer, printers, 1808.

Webster, John., and Robert Patterson. Elements of Natural Philosophy: Explaining the Laws and Principles of Attraction, Gravitation, Mechanics ... [etc.] With a General View of the Solar System. Philadelphia: B. and T. Kite, Fry and Kammerer, printers, 1808.