Cita APA (7th ed.)

Manning, H. P. (1963). Introductory non-Euclidean geometry. Dover Publications.

Cita Chicago (17th ed.)

Manning, Henry Parker. Introductory Non-Euclidean Geometry. New York: Dover Publications, 1963.

Cita MLA (8th ed.)

Manning, Henry Parker. Introductory Non-Euclidean Geometry. Dover Publications, 1963.