Chughtai, M. H. <br/><br/>
A Handbook on Tunneling Methods and Supports/ 
M. H. Chughtai 
 - Pakistan:  Fellow Pakistan Academy of Geological Sciences, 
 - 53p. :  ill. ;  30 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Tunneling Methods
<br/><br/><label>Dewey Class. No.: </label>624.192 CHU