TY - BOOK AU - Valdes,Alberto ED - International Food Policy Research Institute ED - International Maize and Wheat Improvement Center TI - Food security for developing countries SN - 0865310718 : U1 - 338.19 PY - 1981/// CY - Boulder, Colo. PB - Westview Press KW - Food supply KW - Developing countries KW - International cooperations N1 - Includes index ER -