Lipschutz, S. (2011). General Topology. McGraw-Hill.
Cita Chicago (17th ed.)Lipschutz, Seymour. General Topology. New York: McGraw-Hill, 2011.
Cita MLA (9th ed.)Lipschutz, Seymour. General Topology. McGraw-Hill, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.