United States. General Land Office & United States. National Archives and Records Service. (1979). Field notes from selected General Land Office township surveys. National Archives and Records Service.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)United States. General Land Office و United States. National Archives and Records Service. Field Notes from Selected General Land Office Township Surveys. Washington, D.C.: National Archives and Records Service, 1979.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)United States. General Land Office و United States. National Archives and Records Service. Field Notes from Selected General Land Office Township Surveys. National Archives and Records Service, 1979.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.