GAUTAM, N. a. S. N. (1970). General topology. S. Chand.
Cita Chicago (17th ed.)GAUTAM, N.D. and SHANTI NARAYAN. General Topology. Delhi: S. Chand, 1970.
Cita MLA (9th ed.)GAUTAM, N.D. and SHANTI NARAYAN. General Topology. S. Chand, 1970.
Atenció: Aquestes cites poden no estar 100% correctes.