APA-viite (7. p.)
Ingham, M. B., & Dreyer, M. (2004). The philosophical vision of John Duns Scotus: An introduction. Catholic University of America Press.
Chicago-viite (17. p.)
Ingham, Mary Beth, ja Mechthild Dreyer. The Philosophical Vision of John Duns Scotus: An Introduction. Washington, D.C.: Catholic University of America Press, 2004.
MLA-viite (9. p.)
Ingham, Mary Beth, ja Mechthild Dreyer. The Philosophical Vision of John Duns Scotus: An Introduction. Catholic University of America Press, 2004.
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