APA Style

United States. Department of the Interior, Washington, DC.. (). Preliminary Lithogeochemical Map Showing Near-Surface Rock Types in the Chesapeake Bay Watershed, Virginia and Maryland. :[computer file]. . : .

Chicago Style

United States. Department of the Interior, Washington, DC.. Preliminary Lithogeochemical Map Showing Near-Surface Rock Types in the Chesapeake Bay Watershed, Virginia and Maryland. :[computer file].. : , . .

MLA Style

United States. Department of the Interior, Washington, DC.. Preliminary Lithogeochemical Map Showing Near-Surface Rock Types in the Chesapeake Bay Watershed, Virginia and Maryland. :[computer file].. : , . .

Turabian Style

United States. Department of the Interior, Washington, DC.. Preliminary Lithogeochemical Map Showing Near-Surface Rock Types in the Chesapeake Bay Watershed, Virginia and Maryland. :[computer file].. : , . .