00310nam a2200121Ia 4500008004100000082001900041100001800060245003300078260003400111300000900145630001800154650001600172211109s9999||||xx |||||||||||||| ||und||  a514.322bSZE-E  aHu, Sze- Tsen 0aElements of General Topology  bHolden-day, IncaBombayc1964  a214p  xGeneral Stack  vMathematics