Παραπομπή σε μορφή APA (7η εκδ.)

Tabarroni, A. Mental signs and the theory of representation in Ockham: Andrea Tabarroni. On the Medieval theory of signs.(1989).

Παραπομπή σε μορφή Chicago (17η εκδ.)

Tabarroni, Andrea. "Mental Signs and the Theory of Representation in Ockham: Andrea Tabarroni." On the Medieval Theory of Signs.(1989) .

Παραπομπή σε μορφή MLA (8th εκδ.)

Tabarroni, Andrea. "Mental Signs and the Theory of Representation in Ockham: Andrea Tabarroni." On the Medieval Theory of Signs.(1989), .