Não informado. (1953). Papua and New Guinea Agricultural Gazette. Department of Agriculture.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Papua and New Guinea Agricultural Gazette. Port Moresby: Department of Agriculture, 1953.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Papua and New Guinea Agricultural Gazette. Department of Agriculture, 1953.
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