Wood, Gordon H. <br/><br/>
Systematic jointing in the Western part of the Anthracite region of Eastern Pennsylvania/ 
by Gordon H. Wood, Jr, Harold H. Arndt, and M. devereux Carter 
 - Washington, D.C :  United States Government Printing Office,  1969 
 - D17 p. :  ill. ;  15 cm. 
 - Geological Survey Bulletin ;  1271-D .
<br/><br/> A description of a conjugate joint system in folded rocks and the determination of relative age of joint sets and other structural features 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Pennsylvania<br/>Geology--Survey--Pennsylvania
<br/><br/><label>Dewey Class. No.: </label>557.48