Technical Meeting on Agricultural Extension Turrialba, Costa Rica, Food and Agriculture Organization of the United Nations, & Inter-American Institute of Agricultural Sciences. (1949). Educational approaches to rural welfare: Papers submitted to the Technical Meeting on Agricultural Extension, Turrialba, Costa Rica, August 23 to September 2, 1949. Food and Agriculture Organization of the United Nations and Inter-American Institute of Agricultural Sciences.
Chicago-viite (17. p.)Technical Meeting on Agricultural Extension Turrialba, Costa Rica, Food and Agriculture Organization of the United Nations, ja Inter-American Institute of Agricultural Sciences. Educational Approaches to Rural Welfare: Papers Submitted to the Technical Meeting on Agricultural Extension, Turrialba, Costa Rica, August 23 to September 2, 1949. [Washington]: Food and Agriculture Organization of the United Nations and Inter-American Institute of Agricultural Sciences, 1949.
MLA-viite (8. p.)Technical Meeting on Agricultural Extension Turrialba, Costa Rica, et al. Educational Approaches to Rural Welfare: Papers Submitted to the Technical Meeting on Agricultural Extension, Turrialba, Costa Rica, August 23 to September 2, 1949. Food and Agriculture Organization of the United Nations and Inter-American Institute of Agricultural Sciences, 1949.