00324nam a2200121Ia 4500082001700000100002100017245001900038260004800057300002200105490006500127500000500192700000500197  a512bN873.IT  aNorthcott, D. G.  aIdeal theoryb  aCambridgebCambridge University Pressc1953  aviii, 111p. Index  aCambridge tracts in Mathematics and Mathematical Physics, 42  a  a