HU, S. (1964). Elements of general topology. Holden-Day.
Chicago Style (17th ed.) ZitazioaHU, Sze-Tsen. Elements of General Topology. San Francisco: Holden-Day, 1964.
MLA (9th ed.) ZitazioaHU, Sze-Tsen. Elements of General Topology. Holden-Day, 1964.
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