00285nam a2200121Ia 45000030006000000080041000060400015000471000016000622450035000782600021001135460012001340050017001460STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aCohn Harvey  aSecond course in number theory  bJohn Wileyc1962  aEnglish20220125165931.0