Geer, T. T. (1916). Fifty years in Oregon: Experiences, observations, and commentaries upon men, measures, and customs in pioneer days and later times. The Neale publishing Co..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Geer, T. T. Fifty Years in Oregon: Experiences, Observations, and Commentaries upon Men, Measures, and Customs in Pioneer Days and Later Times. New York: The Neale publishing Co., 1916.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Geer, T. T. Fifty Years in Oregon: Experiences, Observations, and Commentaries upon Men, Measures, and Customs in Pioneer Days and Later Times. The Neale publishing Co., 1916.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.