Sutherland, W. A. (1975). Introduction to metric and topological spaces. Clarendon Press.
Cita Chicago (17th ed.)Sutherland, Wilson Alexander. Introduction to Metric and Topological Spaces. Oxford: Clarendon Press, 1975.
Cita MLA (9th ed.)Sutherland, Wilson Alexander. Introduction to Metric and Topological Spaces. Clarendon Press, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.