APA (7th ed.) Citation

United States. Army. Ordnance Department & ProQuest (Firm). (1871). Letter of the Secretary of War, communicating, in obedience to law, a statement of the contracts and purchases of the Ordnance Department during the past year. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Army. Ordnance Department and ProQuest (Firm). Letter of the Secretary of War, Communicating, in Obedience to Law, a Statement of the Contracts and Purchases of the Ordnance Department During the Past Year. Washington: [publisher not identified], 1871.

MLA (9th ed.) Citation

United States. Army. Ordnance Department and ProQuest (Firm). Letter of the Secretary of War, Communicating, in Obedience to Law, a Statement of the Contracts and Purchases of the Ordnance Department During the Past Year. [publisher not identified], 1871.