Englebretsen, G. (1981). Three logicians: Aristotle, Leibniz, and Sommers and the syllogistic. van Gorcum.
Chicago Style (17th ed.) CitationEnglebretsen, George. Three Logicians: Aristotle, Leibniz, and Sommers and the Syllogistic. Assen: van Gorcum, 1981.
MLA (8th ed.) CitationEnglebretsen, George. Three Logicians: Aristotle, Leibniz, and Sommers and the Syllogistic. van Gorcum, 1981.
Warning: These citations may not always be 100% accurate.