APA (7th ed.) Citation

Bonola, R. (1912). Non-Euclidean geometry: A critical and historical study of its development. Open Court Publ. Co.

Chicago Style (17th ed.) Citation

Bonola, Roberto. Non-Euclidean Geometry: A Critical and Historical Study of Its Development. Chicago, Ill: Open Court Publ. Co, 1912.

MLA (9th ed.) Citation

Bonola, Roberto. Non-Euclidean Geometry: A Critical and Historical Study of Its Development. Open Court Publ. Co, 1912.