Não informado. (1927). DSIR bulletin. Department of Scientific and Industrial Research.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. DSIR Bulletin. Wellington: Department of Scientific and Industrial Research, 1927.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. DSIR Bulletin. Department of Scientific and Industrial Research, 1927.
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