Παραπομπή σε μορφή APA (7η εκδ.)

Blass, A., & Scedrov, A. (1989). Freyd's models for the independence of the axiom of choice. American Mathematical Society.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Blass, Andreas, και Andrej Scedrov. Freyd's Models for the Independence of the Axiom of Choice. Providence, R.I., USA: American Mathematical Society, 1989.

Παραπομπή σε μορφή MLA (9th εκδ.)

Blass, Andreas, και Andrej Scedrov. Freyd's Models for the Independence of the Axiom of Choice. American Mathematical Society, 1989.