Rubber Association of Singapore. (1974). Rubber Association of Singapore seminar, 6th to 25th July, 1974, on the marketing of natural rubber. The Association.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিRubber Association of Singapore. Rubber Association of Singapore Seminar, 6th to 25th July, 1974, on the Marketing of Natural Rubber. [Singapore]: The Association, 1974.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিRubber Association of Singapore. Rubber Association of Singapore Seminar, 6th to 25th July, 1974, on the Marketing of Natural Rubber. The Association, 1974.
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