Cite
MLA (8th Edition)
Altitude of the Base of Freshwater In Louisiana. Department of the Interior, United States Geological Survey, Map Distribution, 1988.
APA (7th Edition)
Altitude of the base of freshwater in Louisiana. (1988). Department of the Interior, United States Geological Survey, Map Distribution.
Chicago (17th Edition)
“Altitude of the Base of Freshwater in Louisiana.” Baton Rouge, Louisiana: Department of the Interior, United States Geological Survey, Map Distribution, 1988.