Cite
MLA (8th Edition)
Map Showing Cumulative Thickness of Sandstone In the Swift Formation, Montana. Department of the Interior, United States Geological Survey, Open-File Services Section, Western Distribution Branch, U.S. Geological Survey, 1982.
APA (7th Edition)
Map showing cumulative thickness of sandstone in the Swift Formation, Montana. (1982). Department of the Interior, United States Geological Survey, Open-File Services Section, Western Distribution Branch, U.S. Geological Survey.
Chicago (17th Edition)
“Map Showing Cumulative Thickness of Sandstone in the Swift Formation, Montana.” Helena, Montana: Department of the Interior, United States Geological Survey, Open-File Services Section, Western Distribution Branch, U.S. Geological Survey, 1982.