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"Designation List 377, PS 64"(PDF). New York City Landmarks Preservation Commission. June 20, 2006. Archived(PDF) from the original on December 3, 2008. Retrieved April 20, 2008.
"Recommendations"(PDF). Community Board 9 Manhattan 197-a Plan. September 24, 2007. Archived(PDF) from the original on January 5, 2009. Retrieved September 2, 2008.
Liu, Nina (August 29, 2007). "Washington Irving High School". Gramercy Area Historic Preservation Study. Gramercy Neighborhood Associates. Archived from the original on March 6, 2010. Retrieved July 21, 2009.
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