FAO - National Grain Policies 
FAO - Food and Agriculture Organization of the United NationsFAO - Organización de las Naciones Unidas para la Agricultura y la AlimentaciónFAO - Organization des Nations Unies pour l´Alimentation et l´Agriculture 
 - Rome, Italy, IT  FAO Food and Agriculture Organization of the United Nations  1961. Data final de publicação em 1976 
 - periodicidade desconchecida 
<br/><br/>1961 (Suppl.3); 1962 (Suppl. 4); 1963; 1964; 1966-1969; 1970 (Suppl.); 1972-1973; 1975-1976;  
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