University of Washington. Bureau of Business Research & Robinson, M. D. (1952). Washington State statistical abstract. University of Washington Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUniversity of Washington. Bureau of Business Research और Marilyn Druck Robinson. Washington State Statistical Abstract. Seattle: University of Washington Press, 1952.
एमएलए (8वां संस्करण) प्रशस्ति पत्रUniversity of Washington. Bureau of Business Research और Marilyn Druck Robinson. Washington State Statistical Abstract. University of Washington Press, 1952.
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