Oil shales of Kentucky, a series of four economic and morphological discussions of the Devonian shales of this commonwealth. - Thiessen, Reinhardt, 1876-; White, David, 1862-1935.; Crouse, Charles Stevens; Miller, Arthur McQuiston, 1861-; Bucher, Walter H. (Frankfort, Kentucky, Geological Survey, 1925)
Bibliographical references.
Keywords: Oil-shales -- Kentucky