Heath, R. C. (1984). Ground-water regions of the United States. U.S. Dept. of the Interior, Geological Survey.
Chicago Style (17th ed.) CitationHeath, Ralph C. Ground-water Regions of the United States. Washington, D.C.: U.S. Dept. of the Interior, Geological Survey, 1984.
MLA (9th ed.) CitationHeath, Ralph C. Ground-water Regions of the United States. U.S. Dept. of the Interior, Geological Survey, 1984.
Warning: These citations may not always be 100% accurate.