Geological Survey (U.S.) & Soller, D. R. (1993). Map showing thickness and character of Quaternary sediments in the glaciated United States east of the Rocky Mountains - northeastern states, the Great Lakes, and parts of southern Ontario and the Atlantic offshore area (east of 8031ʹ west longitude). The Survey.
Chicago Style (17th ed.) CitationGeological Survey (U.S.) and D. R. Soller. Map Showing Thickness and Character of Quaternary Sediments in the Glaciated United States East of the Rocky Mountains - Northeastern States, the Great Lakes, and Parts of Southern Ontario and the Atlantic Offshore Area (east of 8031ʹ West Longitude). Reston, VA: The Survey, 1993.
MLA (9th ed.) CitationGeological Survey (U.S.) and D. R. Soller. Map Showing Thickness and Character of Quaternary Sediments in the Glaciated United States East of the Rocky Mountains - Northeastern States, the Great Lakes, and Parts of Southern Ontario and the Atlantic Offshore Area (east of 8031ʹ West Longitude). The Survey, 1993.