displaying 1 - 1 results in total 1
Diamond, W. P.; Oyler, D. C.; Fields, H. H.
view article (1.0)Directionally Controlled Drilling to Horizontally Intercept Selected Strata, Upper Freeport Coalbed, Greene County, PA.Bureau of Mines, Pittsburgh, PARI 8231RI 8231
1977
24 p.