00582nam a2200193Ia 4500020001500000082001700015100002000032245003800052260005200090300002700142490004400169500000500213690000600218700000500224952011500229964001700344921001000361999001700371  a0281832700  a514bH294.SC  aHarper, John R.  aSecondary cohomology operationsb  aProvidencebAmerican Mathematical Societyc2002  axi, 268p. Bibl. Index.  aGraduate Studies in Mathematicsv v. 49  a  a   a  00104070aISIbISId2003-03-25eHBAg234857.00l0o514 H294.SCpDP25778r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a22216  c22216d22216