APA (7th ed.) Citation

United States. Army. Ordnance Department. (1930). Field service modification work orders method. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Army. Ordnance Department. Field Service Modification Work Orders Method. Washington: [publisher not identified], 1930.

MLA (9th ed.) Citation

United States. Army. Ordnance Department. Field Service Modification Work Orders Method. [publisher not identified], 1930.