TY  - GEN
AU  - Willoughby, David A.         
TI  - Horizontal directional drilling: utility and pipeline applications 
T2  - McGraw-Hill civil engineering
SN  - 007145473X (hbk.)
U1  - 622.3381 
PY  - 2005///
CY  - New York
PB  - McGraw-Hill
KW  - Directional drilling
KW  - Horizontal oil well drilling
KW  - Horizontal gas well drilling
N1  - Includes bibliographical references (p. 364-365) and index
UR  - http://www.loc.gov/catdir/enhancements/fy0627/2005299389-b.html
UR  - http://www.loc.gov/catdir/enhancements/fy0627/2005299389-d.html
UR  - http://www.loc.gov/catdir/enhancements/fy0627/2005299389-t.html
ER  -