@book{15080,
	author = {Goldstein, Larry Joel. and Lay, David C.},
	title = {Calculus and its applications /},
	publisher = {Prentice Hall,},
	year = {c1990.},
	address = {Englewood Cliffs, N.J. :},
	edition = {5th ed.},
	url = {http://www.gbv.de/dms/bowker/toc/9780131105379.pdf}
}