APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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