APA (7th ed.) Citation

Ockham, G. d. c. 1., & Boehner, P. (1954). Summa logicae. The Franciscan Institute [etc.].

Chicago Style (17th ed.) Citation

Ockham, Guillermo de ca.1285-ca. 1349, and Philotheus Boehner. Summa Logicae. St. Bonaventure, N. Y. [etc.]: The Franciscan Institute [etc.], 1954.

MLA (9th ed.) Citation

Ockham, Guillermo de ca.1285-ca. 1349, and Philotheus Boehner. Summa Logicae. The Franciscan Institute [etc.], 1954.