00513nam a2200181Ia 4500082001700000100002100017245002600038260003800064300001400102490005900116500000500175690000600180700000500186952009900191964001700290921000900307999001500316  a512bM369.AW  aMarshall, Murray  aAbstract witt ringsb  aOntariobQueen's Universityc1980  avi, 257p.  aQueen's papers in Pure and Applied Mathematicsv no.57  a  a   a  00104070aISIbISId1998-09-10l0o512 M369.AWpDP17905r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a9985  c9985d9985