Geological Survey (U.S.), Soller, D. R., & Packard, P. H. (1998). Digital representation of a map showing the thickness and character of Quaternary sediments in the glaciated United States east of the Rocky Mountains. The Survey ; For sale by USGS Information Services.
Chicago Style (17th ed.) CitationGeological Survey (U.S.), D. R. Soller, and Patricia H. Packard. Digital Representation of a Map Showing the Thickness and Character of Quaternary Sediments in the Glaciated United States East of the Rocky Mountains. Reston, VA : Denver, CO: The Survey ; For sale by USGS Information Services, 1998.
MLA (9th ed.) CitationGeological Survey (U.S.), et al. Digital Representation of a Map Showing the Thickness and Character of Quaternary Sediments in the Glaciated United States East of the Rocky Mountains. The Survey ; For sale by USGS Information Services, 1998.