TY  - BOOK
AU  - Hay,Peter Stewart
TI  - A method of trapping the dust produced by pneumatic rock drills,
T2  - [Gt. Brit.] Safety in Mines Research Board. Paper
AV  - TN295 .G65 no. 23
PY  - 1926///
CY  - London
PB  - H.M. Stationery Off.
KW  - Mine safety
KW  - Rock-drills
ER  -