Appleton, M. B. (1972). Index of Pacific Northwest portraits. Published for Pacific Northwest Library Association, Reference Division, by the University of Washington Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Appleton, Marion B. Index of Pacific Northwest Portraits. Seattle: Published for Pacific Northwest Library Association, Reference Division, by the University of Washington Press, 1972.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Appleton, Marion B. Index of Pacific Northwest Portraits. Published for Pacific Northwest Library Association, Reference Division, by the University of Washington Press, 1972.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.