Cite
MLA (8th Edition)
Maps Showing Altitude of the Potentiometric Surface and Changes In Water Level of the Sparta Sand and Memphis Sand Aquifers In Eastern Arkansas, Spring 1985. Department of the Interior, United States Geological Survey, Open-File Services Section, 1986.
APA (7th Edition)
Maps showing altitude of the potentiometric surface and changes in water level of the Sparta sand and Memphis sand aquifers in eastern Arkansas, spring 1985. (1986). Department of the Interior, United States Geological Survey, Open-File Services Section.
Chicago (17th Edition)
“Maps Showing Altitude of the Potentiometric Surface and Changes in Water Level of the Sparta Sand and Memphis Sand Aquifers in Eastern Arkansas, Spring 1985.” Little Rock, Arkansas: Department of the Interior, United States Geological Survey, Open-File Services Section, 1986.