@book{135015,
	author = {Committee on Educational Media. and Gere, Brewster H.},
	title = {A programed course in calculus /},
	publisher = {W. A. Benjamin,},
	year = {1968.},
	address = {New York :},
	note = {Part of the Committee on Educational Media's Programed Learning Project, directed by Brewster H. Gere.}
}