@book{266175,
	author = {Downing, Douglas. and Downing, Douglas.},
	title = {Calculus the easy way /},
	publisher = {Barron's Educational Series, Inc.,},
	year = {c1988.},
	address = {New York :},
	edition = {2nd ed.},
	note = {Rev. ed. of: Calculus by discovery (Calculus the easy way). c1982.}
}