Ohlsen, B., & Lorain, D. (2026). Backpacking Oregon: From coastal cliffs to mountain meadows (4th edition.). Wilderness Press, an imprint of AdventureKEEN.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ohlsen, Becky, و Douglas Lorain. Backpacking Oregon: From Coastal Cliffs to Mountain Meadows. 4th edition. Birmingham, AL: Wilderness Press, an imprint of AdventureKEEN, 2026.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Ohlsen, Becky, و Douglas Lorain. Backpacking Oregon: From Coastal Cliffs to Mountain Meadows. 4th edition. Wilderness Press, an imprint of AdventureKEEN, 2026.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.