United States. Army. Signal Corps. (1874). [Signal Office stations, geographic locations, and barometric elevations above mean sea level]. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Army. Signal Corps. [Signal Office Stations, Geographic Locations, and Barometric Elevations Above Mean Sea Level]. [Washington]: [publisher not identified], 1874.
MLA (9th ed.) CitationUnited States. Army. Signal Corps. [Signal Office Stations, Geographic Locations, and Barometric Elevations Above Mean Sea Level]. [publisher not identified], 1874.
Warning: These citations may not always be 100% accurate.