Não informado. (1988). Agroforestry Abstracts. International Council for Research in Agroforestry.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Agroforestry Abstracts. Wallingford, Inglaterra: International Council for Research in Agroforestry, 1988.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Agroforestry Abstracts. International Council for Research in Agroforestry, 1988.
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