00306nam a2200121Ia 4500082001900000100002400019245004500043260003400088300001300122490003900135500000500174700000500179  a512.7bM787.TM  aMontgomery, Hugh L.  aTopics in multiplicative number theoryb  aBerlinbSpringer-Verlagc1971  ax, 178p.  aLecture notes in Mathematicsv 227  a  a