(1943). Vol. 15, № 9; Industrial and Engineering Chemistry. Analytical edition. 1943.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रVol. 15, № 9; Industrial and Engineering Chemistry. Analytical Edition. 1943, 1943.
एमएलए (9वां संस्करण) प्रशस्ति पत्रVol. 15, № 9; Industrial and Engineering Chemistry. Analytical Edition. 1943, 1943.
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