@book{2452,
	author = {Hrbacek, Karel, and Jech, Thomas J.,},
	title = {Introduction to set theory /},
	publisher = {M. Dekker,},
	year = {c1978.},
	series = {Monographs and textbooks in pure and applied mathematics ; 45},
	address = {New York :},
	note = {Includes index.}
}