LANGENFORS, U. Y OTRO <br/><br/>
ROCK BLASTING  THE MODERN TECHNIQUE OF 

 - 0 
 - STOCKKOLM  AWE/GEBERS  1978 
 - 438 pag  23 cm 
 - 0  0 .
<br/><br/>MECHANICS-CHANGE/TUNNEL-ELECTRIC BLASTING 
<br/><br/><label>Subjects--Topical Terms: </label><br/>CIENCIAS PURAS
<br/><br/><label>Dewey Class. No.: </label>552  / L23