@book{4308,
	author = {Helman, Paul. and Veroff, Robert.},
	title = {Intermediate problem solving and data structures :},
	publisher = {Benjamin/Cummings Pub. Co.,},
	year = {c1991.},
	address = {Redwood City, Calif. :},
	edition = {2nd ed.},
	note = {"Published simultaneously in Canada"--T.p. verso.}
}