@book{5295,
	author = {Lipschutz, Seymour.},
	title = {Schaums outline of theory and problems of set theory and related topics /},
	publisher = {McGraw-Hill Book Company,},
	year = {c1981.},
	series = {Schaums outline series.},
	address = {Singapore :},
	note = {Includes index.}
}