00516nam 2200169z- 450 996484453203316(CKB)5360000000053909(EXLCZ)99536000000005390920220831c1994uuuu -u- -engSustainable agriculture for a food secure worldCGIARA vision for international agricultural research, July 1994BOOK996484453203316Sustainable agriculture for a food secure world2906839UNISA