00387nam a2200133Ia 4500082001900000100003500019245004400054250000800098260004200106300002100148500004900169500000500218700003000223  a512.7bH269.IT  aHardy, G. H. and Wright, E. M.  aIntroduction to the theory of numbersb  a4th  aLondonbOxford University Pressc1975  axvi, 421p. Index  a"English language book society publication".  a  aWright, E. M. ; jt. auth.