Não informado. (1996). Nutrient Cycling in Agroecosystems. Kluwer Academic Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Nutrient Cycling in Agroecosystems. Dordrecht, Holanda: Kluwer Academic Publishers, 1996.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Nutrient Cycling in Agroecosystems. Kluwer Academic Publishers, 1996.
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