Não informado. (2020). Sugar Industry Abstracts. Cab International Information Services.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Sugar Industry Abstracts. Wallingford, Inglaterra: Cab International Information Services, 2020.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Sugar Industry Abstracts. Cab International Information Services, 2020.
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