Gupta, K. (2000). Topology. Pragati.
Tohutoru Kātū Chicago (17th ed.)Gupta, K.P. Topology. Meerut: Pragati, 2000.
Tohutoro MLA (9th ed.)Gupta, K.P. Topology. Pragati, 2000.
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Tohutoro APA (7th ed.)