Sterrett, C. K. (1948). Principal chemical and metallurgical industries of the Pacific Northwest (Rev. ed.). Raw Materials Survey.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSterrett, Chester K. Principal Chemical and Metallurgical Industries of the Pacific Northwest. Rev. ed. Portland, Or.: Raw Materials Survey, 1948.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSterrett, Chester K. Principal Chemical and Metallurgical Industries of the Pacific Northwest. Rev. ed. Raw Materials Survey, 1948.
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