Grey , E. C. (1925). Practical chemistry by micro-methods. W. Heffer.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGrey , Egerton Charles. Practical Chemistry by Micro-methods. Cambridge: W. Heffer, 1925.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGrey , Egerton Charles. Practical Chemistry by Micro-methods. W. Heffer, 1925.
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