@book{90787,
	author = {Patzig, Günther.},
	title = {Aristotle's theory of the syllogism},
	publisher = {D. Reidel},
	year = {[c1968]},
	series = {Synthese library.},
	address = {Dordrecht},
	note = {Translation of: Die Aristotelische Syllogistik.}
}