Nongnimŏp hubang yŏn'gwan sanŏp ŭi chŏllyakchŏk palchŏn pangan = Development directions for backward linkage industries in the agriculture, forestry and fisheries : with reference to fertilizer and pesticides
Mesa Redonda sobre Desarrollo Agroeconómico del Valle de Cochabamba (1963 : Universidad Mayor de San Simón) Universidad Mayor de San Simón (Cochabamba, Bolivia)