Lithologic descriptions of Appalachian area oil-producing formations /
by R. L. Rough and W. K. Oberbey, Jr.
APA Citation
Rough, R. L. (Robert L.)., Oberbey, W. K. (1970). Lithologic descriptions of Appalachian area oil-producing formations. [Washington, D.C.]: U.S. Bureau of Mines.
MLA Citation
Rough, R. L. (Robert L.), and William K. Oberbey. Lithologic Descriptions of Appalachian Area Oil-producing Formations. [Washington, D.C.]: U.S. Bureau of Mines, 1970.
Warning: These citations may not always be complete (especially for serials).