APA (7th ed.) Citation

Thompson, W. B. (1985). Surficial geologic map of Maine. Maine Geological Survey, Department of Conservation.

Chicago Style (17th ed.) Citation

Thompson, Woodrow B. Surficial Geologic Map of Maine. [Augusta?]: Maine Geological Survey, Department of Conservation, 1985.

MLA (9th ed.) Citation

Thompson, Woodrow B. Surficial Geologic Map of Maine. Maine Geological Survey, Department of Conservation, 1985.

Warning: These citations may not always be 100% accurate.