Wood, Gordon H. 1919-
Systematic Jointing in the Western Part of the Anthracite Region of eastern Pennsylvania / By Gordon H. Wood, Harold H. Arndt and Devereux Carter. -- Washington : United States Government Printing Office, 1969 - 17 p. + 1 plan. pleg. -- (Geological survey Bulletin ; 1271-D).
552.1(748)
Systematic Jointing in the Western Part of the Anthracite Region of eastern Pennsylvania / By Gordon H. Wood, Harold H. Arndt and Devereux Carter. -- Washington : United States Government Printing Office, 1969 - 17 p. + 1 plan. pleg. -- (Geological survey Bulletin ; 1271-D).
552.1(748)