Παραπομπή σε μορφή APA (7η εκδ.)

Ol'shanskii, A. Y. (1991). Geometry of defining relations in groups. Kluwer Academic Publishers.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Ol'shanskii, Aleksandr Yu. Geometry of Defining Relations in Groups. Dordrecht : Boston: Kluwer Academic Publishers, 1991.

Παραπομπή σε μορφή MLA (9th εκδ.)

Ol'shanskii, Aleksandr Yu. Geometry of Defining Relations in Groups. Kluwer Academic Publishers, 1991.