Gregory, Cedric Errol, <br/><br/>
Explosives for north american engineers / 
by Cedric E. Gregory 
 - 276 páginas :  ilustraciones 
 - Series on rock and soil mechanics ;  v. 1 (1971/73) no. 4 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Voladuras (Minería)<br/>Explosivos
<br/><br/><label>LC Class. No.: </label>TA748  / G73