Shedlock, R. J., & Harkness, W. E. (1984). Shallow ground-water flow and drainage characteristics of the Brown Ditch basin near the East Unit, Indiana Dunes National Lakeshore, Indiana, 1982. U.S. Geological Survey.
Chicago Style (17th ed.) CitationShedlock, Robert J., and William E. Harkness. Shallow Ground-water Flow and Drainage Characteristics of the Brown Ditch Basin Near the East Unit, Indiana Dunes National Lakeshore, Indiana, 1982. Indianapolis, Indiana: U.S. Geological Survey, 1984.
MLA (9th ed.) CitationShedlock, Robert J., and William E. Harkness. Shallow Ground-water Flow and Drainage Characteristics of the Brown Ditch Basin Near the East Unit, Indiana Dunes National Lakeshore, Indiana, 1982. U.S. Geological Survey, 1984.
Warning: These citations may not always be 100% accurate.