TY  - BOOK
AU  - Guruswamy,S.
AU  - Ranga Raja Rao
ED  - Central Mining Research Station
TI  - Concentration and size of air-borne dust during drilling in limestone quarries
U1  - 622.(54) 
PY  - 1966///
CY  - Dhanbad
PB  - Central Mining Research Station
ER  -