Ground-water regions of the United States /
by Ralph C. Heath.

APA Citation

Heath, R. C., Geological Survey (U.S.). (1984). Ground-water regions of the United States. Washington, D.C.: U.S. Dept. of the Interior, Geological Survey .

MLA Citation

Heath, Ralph C, and Geological Survey (U.S.). Ground-water Regions of the United States. Washington, D.C.: U.S. Dept. of the Interior, Geological Survey , 1984.

Warning: These citations may not always be complete (especially for serials).