00336nam a2200109Ia 4500008004100000082001700041100002300058245004400081260003800125300002100163490004200184260313b        |||||||| |||| 00| 0 eng d  a514bM416.AT  aMassey, William S.  aAlgebraic topologyb: an introduction /  aNew York:bSpringer-Verlag,c1967  axxi, 261p. Index  aGraduate texts in Mathematicsv v. 56