Barite in the Tennessee valley region - Penhallegon, William James, 1875-; Eckel, Edwin C. (Edwin Clarence), 1875-1941. (Knoxville, Tenn., 1938)
Photo-printed.
Copy 2 with : Iron, chromite and nickel resources of the Tennessee valley region. Knoxville, Tenn., 1938. Bound together subsequent to publication.
"References": p. 45-47.
Keywords: Barite; Mines and mineral resources -- Tennessee River Valley