Gupta, Keshawa Prasad . Topology / Keshawa Prasad Gupta. - 5th ed / . - Meerut : Pragati Prakashan , 1986. - xii,499p. : ill.,figs ; 23cm . Includes bibliography and index ISBN: NULL (Pbk) Subjects--Index Terms: TOPOLOGY Dewey Class. No.: 514 / GUP/T