National highways map of the United States showing one hundred thousand miles of national highways proposed by the National Highways Association / John C. Mulford, chief cartographer ; published under direction of the National Highways Association.
MLA
National Highways Map of the United States Showing One Hundred Thousand Miles of National Highways Proposed by the National Highways Association / John C. Mulford, Chief Cartographer ; Published under Direction of the National Highways Association. National Highways Association, 1915. https://collections.library.yale.edu/catalog/15827820.
APA, 6th edition
National highways map of the United States showing one hundred thousand miles of national highways proposed by the National Highways Association / John C. Mulford, chief cartographer ; published under direction of the National Highways Association. (1915). [Maps]. National Highways Association, https://collections.library.yale.edu/catalog/15827820.
