Não informado. (1996). Agriculture and environment for developing regions. Royal Tropical Institute.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Agriculture and Environment for Developing Regions. Amsterdam: Royal Tropical Institute, 1996.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Agriculture and Environment for Developing Regions. Royal Tropical Institute, 1996.
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