000 00295nam a22001217a 4500
020 _a9780486457864
082 _a514.2 WAL/I
100 _aWallace, Andrew H
245 _aAn Introduction to Algebraic Topology
260 _aNew York
_bDover Publications INC
_c2007
300 _a198
942 _cBK
999 _c62623
_d62623