Food and Agriculture Organization of the United Nations. Agriculture Division. An annual review of world production and consumption of fertilizers. s.n.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFood and Agriculture Organization of the United Nations. Agriculture Division. An Annual Review of World Production and Consumption of Fertilizers. Rome: s.n.
एमएलए (9वां संस्करण) प्रशस्ति पत्रFood and Agriculture Organization of the United Nations. Agriculture Division. An Annual Review of World Production and Consumption of Fertilizers. s.n.
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