Andhra Pradesh (India). Director of Industries. (1976). Directory of small scale industrial units in Andhra Pradesh. Director of Industries, Govt. of Andhra Pradesh.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAndhra Pradesh (India). Director of Industries. Directory of Small Scale Industrial Units in Andhra Pradesh. [Hyderabad]: Director of Industries, Govt. of Andhra Pradesh, 1976.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAndhra Pradesh (India). Director of Industries. Directory of Small Scale Industrial Units in Andhra Pradesh. Director of Industries, Govt. of Andhra Pradesh, 1976.
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