Tyler, N., Ligibel, T., & Tyler, I. R. (2009). Historic preservation: An introduction to its history, principles, and practice (2nd edition.). W.W. Norton & Co.
Lua i Stíl Chicago (17ú heag.)Tyler, Norman, Ted Ligibel, agus Ilene R. Tyler. Historic Preservation: An Introduction to Its History, Principles, and Practice. 2nd edition. New York: W.W. Norton & Co, 2009.
Lua MLA (9ú heag.)Tyler, Norman, et al. Historic Preservation: An Introduction to Its History, Principles, and Practice. 2nd edition. W.W. Norton & Co, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.