"City Hall (New York)". National Historic Landmark summary listing. National Park Service. 2007-09-10. Diarsipkan dari versi asli tanggal 2013-11-05. Diakses tanggal 2011-09-25.
"City Hall (New York)". National Historic Landmark summary listing. National Park Service. 2007-09-10. Diarsipkan dari versi asli tanggal 2013-11-05. Diakses tanggal 2011-09-25.
"City Hall (New York)". National Historic Landmark summary listing. National Park Service. 2007-09-10. Diarsipkan dari versi asli tanggal 2013-11-05. Diakses tanggal 2011-09-25.
"City Hall (New York)". National Historic Landmark summary listing. National Park Service. 2007-09-10. Diarsipkan dari versi asli tanggal 2013-11-05. Diakses tanggal 2011-09-25.