Robbins, W. G., Frank, R. J., & Ross, R. E. (1983). Regionalism and the Pacific Northwest. Oregon State University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRobbins, William G., Robert J. Frank, और Richard E. Ross. Regionalism and the Pacific Northwest. Corvallis, Or.: Oregon State University Press, 1983.
एमएलए (8वां संस्करण) प्रशस्ति पत्रRobbins, William G., et al. Regionalism and the Pacific Northwest. Oregon State University Press, 1983.
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