APA (7th ed.) Citation

John XXI, P. (1490). Summulae logicae. Johannes Hurus.

Chicago Style (17th ed.) Citation

John XXI, Pope. Summulae Logicae. [Caesaraugustae: Johannes Hurus, 1490.

MLA (8th ed.) Citation

John XXI, Pope. Summulae Logicae. Johannes Hurus, 1490.