Mahor, J. W. <br/><br/>
Shot Crete practice in under ground construction / 
by J. W. Mahor, H. W. Parker and W. W. Wniliner 
 - Washington, D.C. :  U.S. Government Printing Office,  1975 
 - Various pagings :  fig., plates ;  28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Underground construction--Estimates
<br/><br/><label>Dewey Class. No.: </label>690