@book{122646,
	author = {Newton, Isaac, and Motte, Andrew},
	title = {Sir Isaac Newton's Mathematical principles of natural philosophy,  and his System of the world.},
	publisher = {University of California Press,},
	year = {1962.},
	address = {Berkeley,},
	note = {Includes reproduction of the t. p. of the 1st ed. of the Principia, London, 1687.}
}