Spokane County Noxious Weed Control Board. (2015). Noxious weeds of Spokane County. Spokane County Noxious Weed Control Board.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSpokane County Noxious Weed Control Board. Noxious Weeds of Spokane County. Spokane, WA: Spokane County Noxious Weed Control Board, 2015.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSpokane County Noxious Weed Control Board. Noxious Weeds of Spokane County. Spokane County Noxious Weed Control Board, 2015.
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