Kelly, P., & Matthews, G. (1981). The non-Euclidean, hyperbolic plane: Its structure and consistency. Springer.
Chicago Style (17th ed.) CitationKelly, Paul, and Gordon Matthews. The Non-Euclidean, Hyperbolic Plane: Its Structure and Consistency. New York u.a: Springer, 1981.
MLA (9th ed.) CitationKelly, Paul, and Gordon Matthews. The Non-Euclidean, Hyperbolic Plane: Its Structure and Consistency. Springer, 1981.
Warning: These citations may not always be 100% accurate.