Παραπομπή σε μορφή APA (7η εκδ.)

Spade Vincent, P. (1994). Five texts on the medieval problems of Universals: Porphyry, Boethius, Adelard, Duns Scitus, Ockham. Hackett Publishing Company.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Spade Vincent, Paul. Five Texts on the Medieval Problems of Universals: Porphyry, Boethius, Adelard, Duns Scitus, Ockham. Indianapolis: Hackett Publishing Company, 1994.

Παραπομπή σε μορφή MLA (8th εκδ.)

Spade Vincent, Paul. Five Texts on the Medieval Problems of Universals: Porphyry, Boethius, Adelard, Duns Scitus, Ockham. Hackett Publishing Company, 1994.