Cite
MLA (8th Edition)
Map Showing the Difference Between the Potentiometric Surfaces of the Magothy Aquifer of September 1975 and September 1982 In Southern Maryland. United States Department of the Interior, Geological Survey, Open-File Services Section, Western Distribution Branch, U.S. Geological Survey, 1982.
APA (7th Edition)
Map showing the difference between the potentiometric surfaces of the Magothy aquifer of September 1975 and September 1982 in Southern Maryland. (1982). United States Department of the Interior, Geological Survey, Open-File Services Section, Western Distribution Branch, U.S. Geological Survey.
Chicago (17th Edition)
“Map Showing the Difference between the Potentiometric Surfaces of the Magothy Aquifer of September 1975 and September 1982 in Southern Maryland.” Towson, Maryland: United States Department of the Interior, Geological Survey, Open-File Services Section, Western Distribution Branch, U.S. Geological Survey, 1982.