APA (7th ed.) Citation

(1998). Map showing the thickness and character of quaternary sediments in the glaciated United States east of the Rocky Mountains, Northern Great Lakes states and Central Mississippi Valley states, the Great Lakes, and Southern Ontario (803̊1' West longitude). U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Map Showing the Thickness and Character of Quaternary Sediments in the Glaciated United States East of the Rocky Mountains, Northern Great Lakes States and Central Mississippi Valley States, the Great Lakes, and Southern Ontario (803̊1' West Longitude). Denver, CO: U.S. Geological Survey, 1998.

MLA (9th ed.) Citation

Map Showing the Thickness and Character of Quaternary Sediments in the Glaciated United States East of the Rocky Mountains, Northern Great Lakes States and Central Mississippi Valley States, the Great Lakes, and Southern Ontario (803̊1' West Longitude). U.S. Geological Survey, 1998.