00350nam a2200109Ia 4500082002200000100006500022245010600087260002700193300001000220500000500230700000500235  a304.2884bOr68.PP  aOrganisation for Economic Cooperation and Development, Paris  aProblems of persistent chemicals; implications of pesticides and other chemicals in the environmentb  aParisbThe Auth.c1971  a113p.  a  a