00325nam a2200133Ia 45000030006000000050017000060080041000230400015000641000032000792450031001112600031001423000006001735460012001790STCL20220125170028.0150530s9999    xx            000 0 und d  aSTCLcSTCL  aKrishnaswamy Iyyangar, A.A.  aForteen Calendars Volume 5  bMathematical Studentc1937  a0  aEnglish