Wirsing, D. R. (1977). Builders, brewers, and burghers: Germans of Washington State. Washington State American Revolution Bicentennial Commission.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWirsing, Dale R. Builders, Brewers, and Burghers: Germans of Washington State. [Olympia?]: Washington State American Revolution Bicentennial Commission, 1977.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWirsing, Dale R. Builders, Brewers, and Burghers: Germans of Washington State. Washington State American Revolution Bicentennial Commission, 1977.
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