APA
(1966). Statistics of crop responses to fertilizers. Rome: Food and Agriculture Organization of the United Nations.
Chicago
1966. Statistics of crop responses to fertilizers. Rome: Food and Agriculture Organization of the United Nations.
Harvard
(1966). Statistics of crop responses to fertilizers. Rome: Food and Agriculture Organization of the United Nations.
MLA
Statistics of crop responses to fertilizers. Rome: Food and Agriculture Organization of the United Nations. 1966.