Berkas, W. R. (1987). Water-quality assessment of Peruque Creek, St. Charles County, Missouri, July 1983 and July 1984. Dept. of the Interior, U.S. Geological Survey.
Chicago Style (17th ed.) CitationBerkas, Wayne R. Water-quality Assessment of Peruque Creek, St. Charles County, Missouri, July 1983 and July 1984. Rolla, Mo.: Dept. of the Interior, U.S. Geological Survey, 1987.
MLA (9th ed.) CitationBerkas, Wayne R. Water-quality Assessment of Peruque Creek, St. Charles County, Missouri, July 1983 and July 1984. Dept. of the Interior, U.S. Geological Survey, 1987.
Warning: These citations may not always be 100% accurate.