@book{3020,
	author = {Cronin, Timothy Mathew},
	title = {Elementary Calculus /},
	publisher = {CROSBY LOCKWOOD,},
	year = {1976.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/0258970529/chopaconline-20}
}