Παραπομπή σε μορφή APA (7η εκδ.)

Cohn, P. M. (1985). Free Rings and their Relations (2nd ed.). Academic Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Cohn, P. M. Free Rings and Their Relations. 2nd ed. London: Academic Press, 1985.

Παραπομπή σε μορφή MLA (9th εκδ.)

Cohn, P. M. Free Rings and Their Relations. 2nd ed. Academic Press, 1985.