Lianyang, Zhang <br/><br/>
Drilled shafts in rock :  analysis and design / 
Lianyang Zhang 
 - London, UK :  A. A. Balkema,  2004 
 - x, 383 p. :  ill. ;  25 cm. 
<br/><br/> Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9058096505 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rock mechanics<br/>Rock-drills