TY  - BOOK
AU  - CROMPRESSED AIR AND GAS INSTITUTE
TI  - PREVENTIVE MAINTENACE FOR ROCK DRILLS
T2  - 0
U1  - 552 
PY  - 1974///
PB  - SECOND EDITION
KW  - CIENCIAS PURAS
N1  - LUBRICATION-MAINTENANCE
ER  -