Economic Benefits of Preserving Old Buildings Conference Seattle, Wash, & National Trust for Historic Preservation in the United States. (1976). Economic benefits of preserving old buildings: Papers from the Economic Benefits of Preserving Old Buildings Conference. Preservation Press, National Trust for Historic Preservation.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Economic Benefits of Preserving Old Buildings Conference Seattle, Wash, و National Trust for Historic Preservation in the United States. Economic Benefits of Preserving Old Buildings: Papers from the Economic Benefits of Preserving Old Buildings Conference. Washington: Preservation Press, National Trust for Historic Preservation, 1976.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Economic Benefits of Preserving Old Buildings Conference Seattle, Wash, و National Trust for Historic Preservation in the United States. Economic Benefits of Preserving Old Buildings: Papers from the Economic Benefits of Preserving Old Buildings Conference. Preservation Press, National Trust for Historic Preservation, 1976.