^ abAutomobile Blue Book. Vol. 1 (1927 ed.). Chicago: Automobile Blue Book, Inc. 1927. This edition shows U.S. Routes as they were first officially signed in 1927.
^"Old 59 Now 59A". The Rockland County Journal-News. February 2, 1956. p. 5. Retrieved March 9, 2018.
^New York and New Jersey Tourgide Map (Map). Cartography by Rand McNally and Company. Gulf Oil Company. 1958.
^ abNew York and New Jersey Tourgide Map (Map). Cartography by Rand McNally and Company. Gulf Oil Company. 1960.
^ abcdefgRoad Map of New York (Map). Cartography by General Drafting. Standard Oil Company of New York. 1930. This map was drawn after the 1930 renumbering.
^ abcTexaco Road Map – New York (Map). Cartography by Rand McNally and Company. Texas Oil Company. 1932.
^New York with Special Maps of Putnam–Rockland–Westchester Counties and Finger Lakes Region (Map) (1955–56 ed.). Cartography by General Drafting. Esso. 1954.
^New York (Map). Cartography by Rand McNally and Company. Sunoco. 1952.
^New York with Special Maps of Putnam–Rockland–Westchester Counties and Finger Lakes Region (Map) (1958 ed.). Cartography by General Drafting. Esso. 1958.
^Automobile Legal Association (ALA) Automobile Green Book, 1930–31 and 1931–32 editions, (Scarborough Motor Guide Co., Boston, 1930 and 1931). The 1930–31 edition shows New York state routes prior to the 1930 renumbering.