Clifton, D. G. (1985). Analysis of biological data collected in the Bull Run Watershed, Portland, Oregon, 1978 to 1983. U.S. Geological Survey.
Chicago Style (17th ed.) CitationClifton, Daphne G. Analysis of Biological Data Collected in the Bull Run Watershed, Portland, Oregon, 1978 to 1983. Portland, Oregon: U.S. Geological Survey, 1985.
MLA (9th ed.) CitationClifton, Daphne G. Analysis of Biological Data Collected in the Bull Run Watershed, Portland, Oregon, 1978 to 1983. U.S. Geological Survey, 1985.
Warning: These citations may not always be 100% accurate.