Παραπομπή σε μορφή APA (7η εκδ.)

Greenberg, M. J. (1993). Euclidean and non-Euclidean geometries: Development and history (3rd ed.). W. H. Freeman and Company.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Greenberg, Marvin Jay. Euclidean and Non-Euclidean Geometries: Development and History. 3rd ed. New York: W. H. Freeman and Company, 1993.

Παραπομπή σε μορφή MLA (9th εκδ.)

Greenberg, Marvin Jay. Euclidean and Non-Euclidean Geometries: Development and History. 3rd ed. W. H. Freeman and Company, 1993.