TY - BOOK AU - Schuh G Edward AU - Tollini Heli TI - Costs and benefits of agriculturl research: The state of the arts T2 - "World Bank staff working papers, 360." U1 - "X9(J)b4-65291.1.N7, L9" PY - 1979/// CY - Washington PB - "D C , World Bank " KW - Agriculture Industries ER -