@book{29920,
	author = {Patzig, Gunther.},
	title = {Aristotle's theory of the syllogism :},
	publisher = {D. Reidel},
	year = {1968},
	series = {Synthese library},
	address = {Dordrecht,},
	note = {Translation of Die Aristotelische Syllogistik.}
}