Fisher, Charles E. (1998). «Promoting the Preservation of Historic Buildings: Historic Preservation Policy in the United States». APT Bulletin29 (3/4): 7-11. JSTOR1504604.
Title 36: Section 60.3Archivado el 10 de febrero de 2007 en Wayback Machine., Parks Forests and Public Property, Chapter One, Part 60. National Register of Historic Places. Consultado el 19 de febrero de 2007.
«About the Historic Preservation Tax Incentives», Federal Historic Preservation Tax Incentives, Technical Preservation Services, National Park Service, Sitio Oficial. Consultado el 22 de marzo de 2007.
"Robie House," (PDF), National Register of Historic Places Nomination Form, HAARGIS Database, Illinois Historic Preservation Agency. Consultado el 24/06/2008.
Title 36: Section 60.3Archivado el 10 de febrero de 2007 en Wayback Machine., Parks Forests and Public Property, Chapter One, Part 60. National Register of Historic Places. Consultado el 19 de febrero de 2007.