@book{30018,
	author = {Łukasiewicz, Jan.},
	title = {Elements of mathematical logic /},
	publisher = {Macmillan ,},
	year = { c1963},
	series = {International series of monographs on pure and applied mathematics,},
	address = {New York :},
	edition = {2d ed.},
	note = {"A Pergamon Press book."}
}