00292    a2200109   4500020001500000082001300015100002200028245006200050260003500112300002200147650001300169  a3540642412  a514bBOU  aBourbaki, Nicolas  aElements of Mathematics General Topology (Chapters 1 - 4)  aNew YorkbSpringerc1990g1989  avii, 437p.c25cm.  aTOPOLOGY