Food and Agriculture Organization of the Nations. Statistics Division. (1966). Statistics of crop responses to fertilizers. s.n.
Chicago-viite (17. p.)Food and Agriculture Organization of the Nations. Statistics Division. Statistics of Crop Responses to Fertilizers. Rome: s.n, 1966.
MLA-viite (9. p.)Food and Agriculture Organization of the Nations. Statistics Division. Statistics of Crop Responses to Fertilizers. s.n, 1966.
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