Hardrock tunnel boring machines / 
Bernhard Maidl ... [et al.] 
 - Berlin :  Ernst & Sohn,  c2008 
 - xiii, 343 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9783433016763  $135.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Tunneling--Equipment and supplies<br/>Drilling and boring machinery
<br/><br/><label>Dewey Class. No.: </label>624.1930284