Model specification for tunnelling / 
the British Tunnelling Society and the Institution of Civil Engineers 
 - London :  T. Telford,  1997 
 - 140 p. ;  30 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0727725882  RM231.39 
<br/><br/><label>LCCN: </label>97-184517 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Tunneling--Standards--Great Britain<br/>Tunnels--Specifications--Great Britain