00702nam a22002171  4500001001300000003000400013005001700017008004100034010001700075025002000092050001600112082001200128110006300140245004800203260011800251300003100369350001700400504002800417650002200445999001700467sa 68013596 DLC20260227112623.0741021s1968    ii a     b    00000 eng    asa 68013596   aPL480:I-E-104900 aTN301b.I56  a622/.4210aIndia (Republic)bTechnical Committee on Mining Standards.10aReport in respect of ventilation standards.0 a[Delhi]bOffice of Chief Inspector of Mines, Ministry of Labour and Employment, Govt. of India,c1963 [i.e. 1968]  aiii, 63 p.billus.c25 cm.  a2.10 ($0.76)  aBibliography: p. 10-11. 0aMine ventilation.  c85201d85201