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245 0 _aIndian Standard : specification for files -part 3
245 0 _bengineers' files
260 _aNew Delhi
260 _bIndian Standards Institution
260 _c1986
300 _a6p.
500 _aIS : 1931 (part 3) - 1985
650 _aIndian Standards
710 _aIndian Standards Institution
942 _cBK
999 _c37739
_d37739