APA (7th ed.) Citation

Clark, S. H. B., Masonic, L. M., & Koozmin, E. D. (2008). Geology of the southern Appalachian Mountains. U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Clark, Sandra H. B., Linda M. Masonic, and Elizabeth D. Koozmin. Geology of the Southern Appalachian Mountains. [Reston, Va.]: U.S. Dept. of the Interior, U.S. Geological Survey, 2008.

MLA (9th ed.) Citation

Clark, Sandra H. B., et al. Geology of the Southern Appalachian Mountains. U.S. Dept. of the Interior, U.S. Geological Survey, 2008.