Παραπομπή σε μορφή APA (7η εκδ.)

Porteous, I. R. (1994). Geometric differentiation: For the intelligence of curves and surfaces. Cambridge University press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Porteous, Ian R. Geometric Differentiation: For the Intelligence of Curves and Surfaces. Cambridge: Cambridge University press, 1994.

Παραπομπή σε μορφή MLA (9th εκδ.)

Porteous, Ian R. Geometric Differentiation: For the Intelligence of Curves and Surfaces. Cambridge University press, 1994.