Food and Agriculture Organization of the United Nations. (1981). Crop production levels and fertilizer use. Food and Agriculture Organization of the United Nations.
Chicago Style (17th ed.) CitationFood and Agriculture Organization of the United Nations. Crop Production Levels and Fertilizer Use. Rome: Food and Agriculture Organization of the United Nations, 1981.
MLA (9th ed.) CitationFood and Agriculture Organization of the United Nations. Crop Production Levels and Fertilizer Use. Food and Agriculture Organization of the United Nations, 1981.
Warning: These citations may not always be 100% accurate.