Pacific Northwest Regional Planning Commission & United States. National Resources Committee. (1938). Forest resources of the Pacific Northwest. U.S. Govt. Print. Off..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Pacific Northwest Regional Planning Commission و United States. National Resources Committee. Forest Resources of the Pacific Northwest. Washington: U.S. Govt. Print. Off., 1938.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Pacific Northwest Regional Planning Commission و United States. National Resources Committee. Forest Resources of the Pacific Northwest. U.S. Govt. Print. Off., 1938.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.