Παραπομπή σε μορφή APA (7η εκδ.)

ebrary, Inc, & Steup, M. (2001). Knowledge, truth, and duty: Essays on epistemic justification, responsibility, and virtue. Oxford University Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

ebrary, Inc, και Matthias Steup. Knowledge, Truth, and Duty: Essays on Epistemic Justification, Responsibility, and Virtue. Oxford ; New York: Oxford University Press, 2001.

Παραπομπή σε μορφή MLA (9th εκδ.)

ebrary, Inc, και Matthias Steup. Knowledge, Truth, and Duty: Essays on Epistemic Justification, Responsibility, and Virtue. Oxford University Press, 2001.