Brawner, C.O. <br/><br/>
Stability in open pit mining :  proceedings of the first international conference Canadá, 1970. 

 - New York :  AIME,  1971. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Minería
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Libro
<br/><br/><label>Universal Decimal Class. No.: </label>622