Gastil, R. D., & Singer, B. (2010). The Pacific Northwest: Growth of a regional identity. McFarland & Co., Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGastil, Raymond D., और Barnett Singer. The Pacific Northwest: Growth of a Regional Identity. Jefferson, N.C.: McFarland & Co., Publishers, 2010.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGastil, Raymond D., और Barnett Singer. The Pacific Northwest: Growth of a Regional Identity. McFarland & Co., Publishers, 2010.
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