@book{438,
	author = {Allendoerfer, Carl B. and Oakley, Cletus O.},
	title = {Fundamentos de matemáticas universitarias},
	publisher = {McGraw-Hill},
	year = {1988},
	address = {México :},
	edition = {3a. ed.},
	url = {https://t0.gstatic.com/images?q=tbn:ANd9GcTHYTwn54q1QTnCB2EryimC9wDwkskYG_m18jLikWsscRcAUlaa}
}