00400nam a2200145Ia 4500020001500000082001700015100002400032245002500056260003400081300002700115490004600142500005600188500000500244700000500249  a1852337826  a514bC951.ET  aCrossley, Martin D.  aEssential topologyb  aLondonbSpringer-Verlagc2005  aix, 224p. Bibl. Index.  aSpringer undergraduate Mathematics series  a"Purchased under NBHM grant for the year 2005-2006"  a  a