Geology and coal resources of the Elk Valley area, Tennessee and Kentucky,
by Kenneth J. Englund.
- Washington, U.S. Govt. Print. Off., 1968.
- iv, 59 p. illus., maps (part fold., part col.) 28 cm.
- United States. Geological Survey. Professional paper 572 .
- Geological Survey professional paper ; 572. .
Part of illustrative matter in pocket. In portfolio.