Allen, H. E., & Gray, J. R. (1984). Runoff, sediment transport, and water quality in a northern Illinois agricultural watershed before urban development, 1979-81. U.S. Geological Survey.
Chicago Style (17th ed.) CitationAllen, Howard E., and John R. Gray. Runoff, Sediment Transport, and Water Quality in a Northern Illinois Agricultural Watershed Before Urban Development, 1979-81. Urbana, Illinois: U.S. Geological Survey, 1984.
MLA (9th ed.) CitationAllen, Howard E., and John R. Gray. Runoff, Sediment Transport, and Water Quality in a Northern Illinois Agricultural Watershed Before Urban Development, 1979-81. U.S. Geological Survey, 1984.
Warning: These citations may not always be 100% accurate.