Gray, J. (1989). Ideas of space : Euclidean, non-Euclidean, and relativistic: Euclidean, non-Euclidean, and relativistic (2nd ed.). Clarendon.
Chicago Style (17th ed.) CitationGray, Jeremy. Ideas of Space : Euclidean, Non-Euclidean, and Relativistic: Euclidean, Non-Euclidean, and Relativistic. 2nd ed. Oxford: Clarendon, 1989.
MLA (9th ed.) CitationGray, Jeremy. Ideas of Space : Euclidean, Non-Euclidean, and Relativistic: Euclidean, Non-Euclidean, and Relativistic. 2nd ed. Clarendon, 1989.
Warning: These citations may not always be 100% accurate.