United States. Bureau of Land Management. Spokane District Office & United States. Bureau of Land Management. Wenatchee Resource Area. (1997). Watchable wildflowers: A Columbia Basin guide. U.S. Dept. of the Interior, Bureau of Land Management, Spokane District, Wenatchee Resource Area.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)United States. Bureau of Land Management. Spokane District Office و United States. Bureau of Land Management. Wenatchee Resource Area. Watchable Wildflowers: A Columbia Basin Guide. Spokane, WA (1103 North Fancher, Spokane 99212): U.S. Dept. of the Interior, Bureau of Land Management, Spokane District, Wenatchee Resource Area, 1997.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)United States. Bureau of Land Management. Spokane District Office و United States. Bureau of Land Management. Wenatchee Resource Area. Watchable Wildflowers: A Columbia Basin Guide. U.S. Dept. of the Interior, Bureau of Land Management, Spokane District, Wenatchee Resource Area, 1997.