The Blue book of Pacific Northwest industry. Publishers Finance Corp..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रThe Blue Book of Pacific Northwest Industry. Seattle, Wash.: Publishers Finance Corp..
एमएलए (8वां संस्करण) प्रशस्ति पत्रThe Blue Book of Pacific Northwest Industry. Publishers Finance Corp..
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