United Nations. Industrial Development Organization, V. (1970). Production of distribution transformers in developing countries. United Nations.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUnited Nations. Industrial Development Organization, Vienna. Production of Distribution Transformers in Developing Countries. United Nations, 1970.
एमएलए (9वां संस्करण) प्रशस्ति पत्रUnited Nations. Industrial Development Organization, Vienna. Production of Distribution Transformers in Developing Countries. United Nations, 1970.
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