APA (7th ed.) Citation

United States. Militia Bureau & ProQuest (Firm). (1917). The National Guard in Federal service. Letter from Brig. Gen. William A. Mann on the organization and entry into Federal service of the National Guard. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Militia Bureau and ProQuest (Firm). The National Guard in Federal Service. Letter from Brig. Gen. William A. Mann on the Organization and Entry into Federal Service of the National Guard. Washington: [publisher not identified], 1917.

MLA (9th ed.) Citation

United States. Militia Bureau and ProQuest (Firm). The National Guard in Federal Service. Letter from Brig. Gen. William A. Mann on the Organization and Entry into Federal Service of the National Guard. [publisher not identified], 1917.