(1957). Farm woodland, 1954 / United States Department of Commerce, Bureau of the Census ; prepared by the Geography Division in cooperation with the Agriculture Division.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Farm Woodland, 1954 / United States Department of Commerce, Bureau of the Census ; Prepared by the Geography Division in Cooperation with the Agriculture Division. 1957.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Farm Woodland, 1954 / United States Department of Commerce, Bureau of the Census ; Prepared by the Geography Division in Cooperation with the Agriculture Division. 1957.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.