%A 帯広畜産大学 %A Asia and the Pacific Programme of Educational Innovation for Development %A Obihiro Asia and the Pacific Seminar on Education for Rural Development %T Biological controls for crop production : the 1991 Obihiro Asia and the Pacific Seminar on Education for Rural Development (OASERD) %I Obihiro University of Agriculture and Veterinary Medicine %D 1991 %U https://ci.nii.ac.jp/ncid/BA67775012