APA (7th ed.) Citation

Feltis, R. D. (1982). Map showing total thickness of the Swift Formation, Montana. Department of the Interior, United States Geological Survey.

Chicago Style (17th ed.) Citation

Feltis, R. D. Map Showing Total Thickness of the Swift Formation, Montana. Helena, Montana: Department of the Interior, United States Geological Survey, 1982.

MLA (9th ed.) Citation

Feltis, R. D. Map Showing Total Thickness of the Swift Formation, Montana. Department of the Interior, United States Geological Survey, 1982.