TY - RPRT TI - Plan of study for selected toxic substances in the Calcasieu River, Louisiana AU - D.K. Demcheck AU - C. R. Demas AU - P.B. Curwick PY - 1990 DO - 10.3133/ofr90148 UR - https://pubs.usgs.gov/publication/ofr90148 ID - ofr90148 ER -