Boersma, P. D., Reichard, S. H., & Van Buren, A. N. (2006). Invasive species in the Pacific Northwest. University of Washington Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBoersma, P. Dee, Sarah H. Reichard, और A. N. Van Buren. Invasive Species in the Pacific Northwest. Seattle: University of Washington Press, 2006.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBoersma, P. Dee, et al. Invasive Species in the Pacific Northwest. University of Washington Press, 2006.
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