Washington State University. Cooperative Extension. Spokane County & Fitzgerald, T. J. (1990). Native and adapted landscape plant list for the Inland Northwest. Washington State University, Cooperative Extension, Spokane County.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWashington State University. Cooperative Extension. Spokane County और Tonie Jean Fitzgerald. Native and Adapted Landscape Plant List for the Inland Northwest. Spokane, Wash.: Washington State University, Cooperative Extension, Spokane County, 1990.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWashington State University. Cooperative Extension. Spokane County और Tonie Jean Fitzgerald. Native and Adapted Landscape Plant List for the Inland Northwest. Washington State University, Cooperative Extension, Spokane County, 1990.
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