@book{5290,
	author = {Roethel, Louis F. and Weinstein, Abraham,},
	title = {Logic, sets, & numbers /},
	publisher = {Wadsworth Pub. Co.,},
	year = {1976.},
	address = {Belmont, Calif. :},
	edition = {2d. ed.},
	note = {Includes index.}
}