APA (7th ed.) Citation

Clark, S. H., & Mosier, E. L. (1989). Barite nodules in Devonian shale and mudstone of western Virginia. US Gov. Print. Off.

Chicago Style (17th ed.) Citation

Clark, Sandra H., and Elwin L. Mosier. Barite Nodules in Devonian Shale and Mudstone of Western Virginia. Washington, D.C: US Gov. Print. Off, 1989.

MLA (9th ed.) Citation

Clark, Sandra H., and Elwin L. Mosier. Barite Nodules in Devonian Shale and Mudstone of Western Virginia. US Gov. Print. Off, 1989.