APA (7th ed.) Citation

United States. Army. Signal Corps. (1789). [Instructions for examining and reporting on tornado's path]. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Army. Signal Corps. [Instructions for Examining and Reporting on Tornado's Path]. [Washington]: [publisher not identified], 1789.

MLA (9th ed.) Citation

United States. Army. Signal Corps. [Instructions for Examining and Reporting on Tornado's Path]. [publisher not identified], 1789.