Pitt, J. D. <br/><br/>
Hydraulic roughness of segmentally lined tunnels 
J.D. Pitt, P. Ackers 
 - London  Construction Industry Researh and Information Association  [1982] 
 - 30 p.  ill. 
 - CIRIA report  96 .
 - Construction Industry Research and Information Association.  Report  96 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Tunnels<br/>Hydraulic engineering