BULLOCK,R.L <br/><br/>
RAPID EXCAVATION AND TUNNELING CONFERENCE PROCEEDINGS(SAN FRANCISCO) VOL.II 

 - NEW YORK  SME  1979 
 - 24X16 
<br/><br/><label>ISBN: </label>0895202859 
<br/><br/><label>Dewey Class. No.: </label>622.2606 M184