Willoughby, David A. <br/><br/>
Horizontal directional drilling: utility and pipeline applications 
/David A. Willoughby 
 - New York  McGraw-Hill  2005 
 - xiii, 393 p. 
<br/><br/> 	Includes appendix, glossary and index. 
<br/><br/><label>ISBN: </label>007145473X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Drilling techniques<br/> Natural gas pipelines<br/>Horizontal gas well drilling<br/> Petrolium pipeline
<br/><br/><label>Dewey Class. No.: </label>622.3381  / WIL