Clark, S. H. B., & Mosier, E. L. (1989). Barite nodules in Devonian shales and mudstones of western Virginia. Dept. of the Interior, U.S. Geological Survey.
Chicago Style (17th ed.) CitationClark, Sandra H. B., and Elwin L. Mosier. Barite Nodules in Devonian Shales and Mudstones of Western Virginia. [Reston, Va.]: Dept. of the Interior, U.S. Geological Survey, 1989.
MLA (9th ed.) CitationClark, Sandra H. B., and Elwin L. Mosier. Barite Nodules in Devonian Shales and Mudstones of Western Virginia. Dept. of the Interior, U.S. Geological Survey, 1989.
Warning: These citations may not always be 100% accurate.