Report in respect of ventilation standards.
Report in respect of ventilation standards.
- [Delhi] Office of Chief Inspector of Mines, Ministry of Labour and Employment, Govt. of India, 1963 [i.e. 1968]
- iii, 63 p. illus. 25 cm.
Bibliography: p. 10-11.
sa 68013596
Mine ventilation.
TN301 / .I56
622/.42
Bibliography: p. 10-11.
sa 68013596
Mine ventilation.
TN301 / .I56
622/.42