Παραπομπή σε μορφή APA (7η εκδ.)

Bonola, R., Bolyai, J., Lobachevskii, N. I., Carslaw, H. S., Halsted, G. B., & Enriques, F. (1955). Non-Euclidean geometry: A critical and historical study of its development. Dover Publications.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Bonola, Roberto, Janos Bolyai, N. I. Lobachevskii, H. S. Carslaw, George Bruce Halsted, και Federigo Enriques. Non-Euclidean Geometry: A Critical and Historical Study of Its Development. [New York]: Dover Publications, 1955.

Παραπομπή σε μορφή MLA (9th εκδ.)

Bonola, Roberto, et al. Non-Euclidean Geometry: A Critical and Historical Study of Its Development. Dover Publications, 1955.