00383nam a2200133Ia 4500020001800000082001700018100002000035245005800055260005200113300002700165490004700192500000500239700000500244  a9781470419158  a514bP911.EC  aPrasolov, V. V.  aElements of combinatorial and differential topologyb  aProvidencebAmerican Mathematical Societyc2006  axii, 331p. Bibl. Index  aGraduate Studies in Mathematics v vol. 74  a  a