TY - BOOK ED - Organisation for Economic Co-operation and Development (Paris) TI - The Problems of persistent chemicals: implications of pesticides and other chemicals in the environment: report U1 - 614.7 21st PY - 1971/// CY - Paris PB - OECD KW - Persistent pollutants; Pollutants; Pesticides; Agricultural chemicals N1 - Report of the study group on unintended occurrence of pesticides ER -