Ashworth, G. J. (1991). Heritage planning: Conservation as the management of urban change Groningen: Geo Pers.
Reference keyword: Architecture Conservation and restoration
Cohen, N. (2001). Urban planning, conservation, and preservation New York: McGraw-Hill.
Fram, M. (2003). Well-preserved: The Ontario Heritage Foundation\textquoterights manual of principles and practice for architectural conservation (3rd ed.). Erin, Ont.: Boston Mills Press.