Food and Agriculture Organization of the United Nations. Yearbook of food and agricultural statistics. [s.n.
Cita Chicago (17th ed.)Food and Agriculture Organization of the United Nations. Yearbook of Food and Agricultural Statistics. Washington: [s.n.
Cita MLA (9th ed.)Food and Agriculture Organization of the United Nations. Yearbook of Food and Agricultural Statistics. [s.n.
Atenció: Aquestes cites poden no estar 100% correctes.