AFROUZ, ANDY A. <br/><br/>
PRACTICAL HANDBOOK OF ROCKMASS CLASSIFICATION SYSTEMS AND MODES OF GROUND FAILURE 

 - BOCA RATAN    CRC PRESS  1992 
 - 195 
<br/><br/><label>ISBN: </label>0-0499-3711-9 
<br/><br/><label>Dewey Class. No.: </label>622.22  / AFR