APA (7th ed.) Citation

United States. Army. Signal Corps. (1874). [Opening, identification numbers, and instructions for telegraphic reports for 4 Signal Office stations]. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Army. Signal Corps. [Opening, Identification Numbers, and Instructions for Telegraphic Reports for 4 Signal Office Stations]. [Washington]: [publisher not identified], 1874.

MLA (9th ed.) Citation

United States. Army. Signal Corps. [Opening, Identification Numbers, and Instructions for Telegraphic Reports for 4 Signal Office Stations]. [publisher not identified], 1874.