00363nam a2200133Ia 4500082001600000100002100016245002500037250000900062260005400071300002700125490006700152500000500219700000500224  a512bJ17.SR  aJacobsan, Nathan  aStructure of ringsb  aRev.  aRhode IslandbAmerican Mathematical Societyc1968  aix, 299p. Index, Bibl.  aAmerican Mathematical Society Colloquium Publications v v. 37  a  a