Thomas, Alun <br/><br/>
Sprayed concrete lined tunnels :  an introduction / 
Alun Thomas 
 - New York, NY :  Taylor & Francis,  2009 
 - xv, 241 p. :  ill. ;  24 cm. 
<br/><br/>aIncludes bibliographical references and index 
<br/><br/><label>ISBN: </label>9780415368643 (hardback : alk. paper) 0415368642 (hardback : alk. paper) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Shotcrete-lined tunnels