Gupta, K. (2000). Topology. Pragati.
Cita Chicago (17th ed.)Gupta, K.P. Topology. Meerut: Pragati, 2000.
Cita MLA (9th ed.)Gupta, K.P. Topology. Pragati, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)