00390nam a2200169Ia 4500003000400000005001700004008004000021020001800061040000700079041000800086082001500094100002100109245002900130250000600159260004200165300001300207OSt20220715144121.0210210b1995   xxu||||| |||| 00| 0 eng d  a81 85392 68 4  cAL  aeng  a512.7 BURE  aBURTON (David M)  aElementary number theory  a2  aNew DelhibUniversal Book Stallc1995  axvii,450