TY - RPRT TI - Change in methylene blue active substances and chloride levels in streams in Suffolk County, New York, 1961-1976 AU - Stephen E. Ragone AU - August A. Guerrera AU - W.J. Flipse PY - 1976 DO - 10.3133/ofr76600 UR - https://pubs.usgs.gov/publication/ofr76600 ID - ofr76600 ER -