Alaska Communications System : chart of Alaska showing stations to which commercial communication service is available / prepared by Alaska Communication System [and] Signal Corps, Department of the Army ; Cartography and format Northwest Mapping Service.
MLA
System, Alaska Communication. Alaska Communications System : Chart of Alaska Showing Stations to Which Commercial Communication Service Is Available / Prepared by Alaska Communication System [and] Signal Corps, Department of the Army ; Cartography and Format Northwest Mapping Service. 0AD. https://collections.library.yale.edu/catalog/15821793.
APA, 6th edition
System, A. C. (0 C.E.). Alaska Communications System : chart of Alaska showing stations to which commercial communication service is available / prepared by Alaska Communication System [and] Signal Corps, Department of the Army ; Cartography and format Northwest Mapping Service. [Maps]. https://collections.library.yale.edu/catalog/15821793.
