APA (7th ed.) Citation

Gilbert de la Porrée, c., & Häring, N. M. (1966). The commentaries on Boethius. Pontifical Institute of Mediaeval Studies.

Chicago Style (17th ed.) Citation

Gilbert de la Porrée, ca., and Nikolaus M. Häring. The Commentaries on Boethius. Toronto: Pontifical Institute of Mediaeval Studies, 1966.

MLA (9th ed.) Citation

Gilbert de la Porrée, ca., and Nikolaus M. Häring. The Commentaries on Boethius. Pontifical Institute of Mediaeval Studies, 1966.