TY - BK AU - Plucknett,D.L. TI - Science and agricultural transformation T2 - IFPRI Lecture Series PY - 1993/// CY - Washington, DC (USA) PB - IFPRI, KW - Agricultural development KW - AGROVOC KW - Extension activities KW - Food production KW - Planning KW - Research KW - Technical progress KW - Technology transfer KW - Farming systems ER -