APA (7th ed.) Citation

Maryland Geological Survey. (1907). St. Mary's County. Johns Hopkins Press.

Chicago Style (17th ed.) Citation

Maryland Geological Survey. St. Mary's County. Baltimore: Johns Hopkins Press, 1907.

MLA (8th ed.) Citation

Maryland Geological Survey. St. Mary's County. Johns Hopkins Press, 1907.

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