Szechy, Karoly <br/><br/>
The Art of tunnelling / 
Karoly Szechy. 
 - 891 p. :  ill. ;  25 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bilbliographical references.   
<br/><br/><label>ISBN: </label>?? 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Civil engineering--tunnelling