Summa Logicae
MLA
de Ockham, Guilelmus, and Philotheus Boehner. Summa Logicae. Saint-Bonaventure: Saint-Bonaventure university. Franciscan institute, 1974.
APA
de Ockham, G., & Boehner, P. (1974). Summa Logicae. Saint-Bonaventure: Saint-Bonaventure university. Franciscan institute.
Chicago
de Ockham, Guilelmus. Summa Logicae. Edited by Philotheus Boehner. Saint-Bonaventure: Saint-Bonaventure university. Franciscan institute, 1974.