TY  - BOOK
AU  - LANGENFORS, U. Y OTRO
TI  - ROCK BLASTING: THE MODERN TECHNIQUE OF
T2  - 0
U1  - 552 
PY  - 1978///
CY  - STOCKKOLM
PB  - AWE/GEBERS
KW  - CIENCIAS PURAS
N1  - MECHANICS-CHANGE/TUNNEL-ELECTRIC BLASTING
ER  -