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.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Seattle Audubon Society و 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.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Seattle Audubon Society و 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.