Geological Formations - Lava Formations - All States

Chicago citation style
Department of Agriculture. Forest Service. 7/1/1905-. Geological Formations - Lava Formations - All States. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/7009021. (Accessed June 19, 2018.)
APA citation style
Department of Agriculture. Forest Service. 7/1/1905-, Geological Formations - Lava Formations - All States. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/7009021
MLA citation style
Department of Agriculture. Forest Service. 7/1/1905-. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/7009021>.
Note: These citations are programmatically generated and may be incomplete.