Παραπομπή σε μορφή APA (7η εκδ.)

Oprea, J. (2007). Differential geometry and its applications (2nd ed.). The Mathematical Association of America.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Oprea, John. Differential Geometry and Its Applications. 2nd ed. Washington: The Mathematical Association of America, 2007.

Παραπομπή σε μορφή MLA (8th εκδ.)

Oprea, John. Differential Geometry and Its Applications. 2nd ed. The Mathematical Association of America, 2007.