(1938). Vol. 16, № 23 (Vol. 30, № 46); Industrial and Engineering Chemistry. New Edition. 1938.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रVol. 16, № 23 (Vol. 30, № 46); Industrial and Engineering Chemistry. New Edition. 1938, 1938.
एमएलए (9वां संस्करण) प्रशस्ति पत्रVol. 16, № 23 (Vol. 30, № 46); Industrial and Engineering Chemistry. New Edition. 1938, 1938.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.