Roberts, A. <br/><br/>
Applied geotechnology :  a text for students and engineers on rock excavation and related topics / 
by A. Roberts. 
 - Oxford :  Pergamon Press,  1981 
 - 344 p. :  ill. ;  25 cm. 
 - Pergamon international library .
<br/><br/><label>ISBN: </label>0080240151 (hbk.) 0080240143 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering geology.