Economic evaluation of directional drilling for methane drainage from coalbeds / 
by E.C. Baker ... [et al.]. 
 - [Avondale, Md.] :  U.S. Dept. of the Interior, Bureau of Mines,  1984. 
 - 11 p. :  ill. ;  28 cm. 
 - Report of investigations ;  8842 .
 - Report of investigations (United States. Bureau of Mines) ;  8842. .
<br/><br/>Bibliography: p. 5-6. 
<br/><br/><label>LCCN: </label>83600295  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coalbed methane drainage--Directional drilling--Economic aspects--Pennsylvania.<br/>Methane industry--Pennsylvania.
<br/><br/><label>LC Class. No.: </label>TN23  TN305  / .U43 no. 8842 
<br/><br/><label>Dewey Class. No.: </label>622 s  622/.8 
<br/><br/><label>Gov. Doc. Class. No.: </label>I 28.23:8842