(Dayton)International Controlled Release Pesticide Sympsoium (Corvallis)International Controlled Release Pesticide Sympsoium International Controlled Release Pesticide Sympsoium 1977 International Controlled Release Pesticide Symposium Proceedings 1975 International Controlled Release Pesticide Symposium (Akron)Controlled Release Pesticide Symposium 1976 Controlled Release Pesticide Symposium (Kyoto)International Congress of Pesticide Chemistry Controlled Release Pesticide Symposium (Boston)International Microelectronic Symposium