Cita APA (7a ed.)

Thomas, A., Albertus, M., Houser, R. E., & Philip, t. C. (2004). The cardinal virtues: Aquinas, Albert and Philip the Chancellor. Pontifical Institute of Mediaeval Studies.

Cita Chicago Style (17a ed.)

Thomas, Aquinas, Magnus Albertus, Rollen Edward Houser, y the Chancellor Philip. The Cardinal Virtues: Aquinas, Albert and Philip the Chancellor. Toronto: Pontifical Institute of Mediaeval Studies, 2004.

Cita MLA (8a ed.)

Thomas, Aquinas, et al. The Cardinal Virtues: Aquinas, Albert and Philip the Chancellor. Pontifical Institute of Mediaeval Studies, 2004.