Gupta, B. (1997). Topology: With complete metric analysis. Kedar Nath ram Nath.
Chicago Style (17th ed.) ZitazioaGupta, B.D. Topology: With Complete Metric Analysis. Meerut: Kedar Nath ram Nath, 1997.
MLA (9th ed.) ZitazioaGupta, B.D. Topology: With Complete Metric Analysis. Kedar Nath ram Nath, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.