TY - RPRT TI - Elevated DDE and toxaphene residues in fishes and birds reflect local contamination in the lower Rio Grande valley Texas USA AU - Donald H. White AU - C. A. Mitchell AU - H.R. Kennedy AU - A. J. Krynitsky AU - M. A. Ribick PY - 1983 UR - https://pubs.usgs.gov/publication/1003214 ID - 1003214 ER -