00430nam a2200157 a 450000500170000002000180001708200150003510000220005024500260007226000440009830000280014260000080017063000820017885600060026085600060026620251203114858.0  a9780521541862  a514.2bHAT  aHatcher, Allend_  aAlgebraic topologyb_  aDelhibCambridge University Pressc2002  axii, 544 p.c24 cm.bPB  bc_  aAlgebraic topology , Mathematics -Topology,  Algebra - Differential equations  f_  a_