00338nam a2200133Ia 4500020001800000082001700018100002400035245002500059260003800084300002600122490004600148500000500194700000500199  a9788184891942  a514bC951.ET  aCrossley, Martin D.  aEssential topologyb  aNew DelhibSpringer (India)c2015  aix, 224p. Bibl. Index  aSpringer undergraduate Mathematics series  a  a