Seattle Audubon Society & Larrison, E. J. (1974). Washington wildflowers, including 1134 species of wildflowers most commonly found in the State of Washington and adjacent areas of Oregon, Idaho, and British Columbia. Seattle Audubon Society.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Seattle Audubon Society và Earl J. Larrison. Washington Wildflowers, Including 1134 Species of Wildflowers Most Commonly Found in the State of Washington and Adjacent Areas of Oregon, Idaho, and British Columbia. Seattle]: Seattle Audubon Society, 1974.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Seattle Audubon Society và Earl J. Larrison. Washington Wildflowers, Including 1134 Species of Wildflowers Most Commonly Found in the State of Washington and Adjacent Areas of Oregon, Idaho, and British Columbia. Seattle Audubon Society, 1974.