(1983). Sulfur In South-east Asian & South Pacific Agriculture. [ADAB-The Sulphure Institut].
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSulfur In South-east Asian & South Pacific Agriculture. [ADAB-The Sulphure Institut], 1983.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSulfur In South-east Asian & South Pacific Agriculture. [ADAB-The Sulphure Institut], 1983.
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