000 00325n a2200121ua 4500
040 _aIIT, Kanpur
082 _a511.135.6 (083.74) (540)
245 0 _aRules for rounding off numerical values
250 _aRevised
260 _aNew Delhi
_bIsi
_c1960
300 _aIS : 2-1960
997 _a19240 C
999 _c453085
_d453085