third international congress of pesticide chemistry of including the symposium on dispersion dynamics of pollutants in the environment held at helsinki,finland 3-9 July 1974 International Union of Pure and Applied Chemistry (IUPAC) creator text xx London Butterworth 1975 9999 monographic und ENG vi + 299 toxicology, agricultural chemicals, pesticide toxicology 4078/13.10.81 Toxicology Agriculture 632.9 0-408-70708-9 260808 20260808125433.0