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.
Chicago-viite (17. p.)Thomas, Aquinas, Magnus Albertus, Rollen Edward Houser, ja the Chancellor Philip. The Cardinal Virtues: Aquinas, Albert and Philip the Chancellor. Toronto: Pontifical Institute of Mediaeval Studies, 2004.
MLA-viite (8. p.)Thomas, Aquinas, et al. The Cardinal Virtues: Aquinas, Albert and Philip the Chancellor. Pontifical Institute of Mediaeval Studies, 2004.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.