Evans, B. (1998). Traces of the trails: A guide to historic trails and wagon road sites on public lands in eastern Oregon. U.S. Dept. of the Interior, Bureau of Land Management, Vale District ; Trail Tenders, Inc..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Evans, Bob. Traces of the Trails: A Guide to Historic Trails and Wagon Road Sites on Public Lands in Eastern Oregon. Baker City, Or.: U.S. Dept. of the Interior, Bureau of Land Management, Vale District ; Trail Tenders, Inc., 1998.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Evans, Bob. Traces of the Trails: A Guide to Historic Trails and Wagon Road Sites on Public Lands in Eastern Oregon. U.S. Dept. of the Interior, Bureau of Land Management, Vale District ; Trail Tenders, Inc., 1998.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.