United Nations. Industrial Development Organization, V. (1969). Establishing standardization of plastics in developing countries .... monograph No.5). United Nations.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUnited Nations. Industrial Development Organization, Vienna. Establishing Standardization of Plastics in Developing Countries .... Monograph No.5). United Nations, 1969.
एमएलए (9वां संस्करण) प्रशस्ति पत्रUnited Nations. Industrial Development Organization, Vienna. Establishing Standardization of Plastics in Developing Countries .... Monograph No.5). United Nations, 1969.
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