توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

(2013). To enact title 54, United States Code, "National Park Service and Related Programs", as a positive law title: Report (to accompany H.R. 1068) (Including cost estimate of the Congressional Budget Office).

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

To Enact Title 54, United States Code, "National Park Service and Related Programs", as a Positive Law Title: Report (to Accompany H.R. 1068) (Including Cost Estimate of the Congressional Budget Office). 2013.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

To Enact Title 54, United States Code, "National Park Service and Related Programs", as a Positive Law Title: Report (to Accompany H.R. 1068) (Including Cost Estimate of the Congressional Budget Office). 2013.