Food and Agriculture Organization of the United Nations. Agriculture Division. An annual review of world production and consumption of fertilizers. s.n.
Citazione stile Chigago Style (17a edizione)Food and Agriculture Organization of the United Nations. Agriculture Division. An Annual Review of World Production and Consumption of Fertilizers. Rome: s.n.
Citatione MLA (9a ed.)Food and Agriculture Organization of the United Nations. Agriculture Division. An Annual Review of World Production and Consumption of Fertilizers. s.n.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.