توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

United States. Dept. of Agriculture. Economic Research Service. (1968). Public access to public domain lands: Two case studies of landowner-sportsan conflict. U.S. Govt. Print.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

United States. Dept. of Agriculture. Economic Research Service. Public Access to Public Domain Lands: Two Case Studies of Landowner-sportsan Conflict. Washington: U.S. Govt. Print, 1968.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

United States. Dept. of Agriculture. Economic Research Service. Public Access to Public Domain Lands: Two Case Studies of Landowner-sportsan Conflict. U.S. Govt. Print, 1968.