Cita APA (7a ed.)
(1982). FAO Trade Yearbook 1981. Food and Agriculture Organization of the United Nations.
Cita Chicago Style (17a ed.)
FAO Trade Yearbook 1981. Rome: Food and Agriculture Organization of the United Nations, 1982.
Cita MLA (9a ed.)
FAO Trade Yearbook 1981. Food and Agriculture Organization of the United Nations, 1982.
Precaución: Estas citas no son 100% exactas.