توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

National Trust for Historic Preservation in the United States. (1980). Preservation: Toward an ethic in the 1980s. Preservation Press, National Trust for Historic Preservation.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

National Trust for Historic Preservation in the United States. Preservation: Toward an Ethic in the 1980s. [Washington, D.C.: Preservation Press, National Trust for Historic Preservation, 1980.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

National Trust for Historic Preservation in the United States. Preservation: Toward an Ethic in the 1980s. Preservation Press, National Trust for Historic Preservation, 1980.