Gupta, B. (1997). Topology: With complete metric analysis. Kedar Nath ram Nath.
Chicago-čujuhus (17. p.)Gupta, B.D. Topology: With Complete Metric Analysis. Meerut: Kedar Nath ram Nath, 1997.
MLA-čujuhus (9. p.)Gupta, B.D. Topology: With Complete Metric Analysis. Kedar Nath ram Nath, 1997.
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