United Nations. Industrial Development Organization, V. (1969). Studies in plastics fabrication and application (petro-chemical ....monograph No.3). United Nations.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUnited Nations. Industrial Development Organization, Vienna. Studies in Plastics Fabrication and Application (petro-chemical ....monograph No.3). United Nations, 1969.
एमएलए (9वां संस्करण) प्रशस्ति पत्रUnited Nations. Industrial Development Organization, Vienna. Studies in Plastics Fabrication and Application (petro-chemical ....monograph No.3). United Nations, 1969.
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