(Covers to) Pictorial Map of Northern Colorado. (Text) (Maps) Detail Map of Boulder. Map of Principal Highways across Northern ColoradoPictorial Map of Northern Colorado. This Map is presented by the Resorts and Places of Business shown here to help make your vacation more enjoyableCovers: Pictorial Map of Northern Colorado. Maps: Boulder. Principal Highways

Chicago citation style
Ruth, C.H. (Covers to) Pictorial Map of Northern Colorado. (Text) (Maps) Detail Map of Boulder. Map of Principal Highways across Northern Colorado,Pictorial Map of Northern Colorado. This Map is presented by the Resorts and Places of Business shown here to help make your vacation more enjoyable,Covers: Pictorial Map of Northern Colorado. Maps: Boulder. Principal Highways. 1940. Retrieved from the Digital Public Library of America, https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~277735~90050754. (Accessed December 14, 2018.)
APA citation style
Ruth, C.H, (1940) (Covers to) Pictorial Map of Northern Colorado. (Text) (Maps) Detail Map of Boulder. Map of Principal Highways across Northern Colorado,Pictorial Map of Northern Colorado. This Map is presented by the Resorts and Places of Business shown here to help make your vacation more enjoyable,Covers: Pictorial Map of Northern Colorado. Maps: Boulder. Principal Highways. Retrieved from the Digital Public Library of America, https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~277735~90050754
MLA citation style
Ruth, C.H. Retrieved from the Digital Public Library of America <https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~277735~90050754>.
Note: These citations are programmatically generated and may be incomplete.