TY - BOOK T1 - Controlled release technologies a survey of research and commercial applications A1 - Duncan, Ruth A2 - Seymour, Len W. LA - English PP - Oxford, U.K. PB - Elsevier Advanced Technology YR - 1989 UL - http://www.ds.mainlib.upd.edu.ph/Record/UP-1685523046125274155 OP - 208 CN - TP156.C64 D85 SN - 0946395446 KW - Controlled release preparations. KW - Pesticides : Controlled release. ER -