AUA guidelines for backfilling and contact grouting of tunnels ans shafts / 
Edited by Raymond W. Henn. 
 - United States :  Asce Press,  2003. 
 - xviii, 251 pages :  illustrations, charts. 
<br/><br/><label>ISBN: </label>0727729837 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Tunnels.<br/>Túneles.
<br/><br/><label>Dewey Class. No.: </label>624.193