@book{957,
	author = {Lipschutz, Seymour. and Lipson, Marc.},
	title = {Schaum's outline of discrete mathematics/},
	publisher = {Schaum},
	year = {c2007.},
	series = {Schaum's outline series.},
	address = {New York},
	edition = {third edition},
	note = {Previously titled "Schaum's outline of theory and problems of discrete mathematics", 1997 edition.}
}