FAO. (1992). FAO soils bulletin N.65: Status of cadmium, lead, cobalt and selenium in soils and plants of thirty countries. Rome: FAO.
Čikaški stil citiranjaFAO. FAO Soils Bulletin N.65: Status of Cadmium, Lead, Cobalt and Selenium in Soils and Plants of Thirty Countries. Rome: FAO, 1992.
MLA način citiranjaFAO. FAO Soils Bulletin N.65: Status of Cadmium, Lead, Cobalt and Selenium in Soils and Plants of Thirty Countries. Rome: FAO, 1992.
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