APA (7th ed.) Citation

United States. War Department. (1909). [Instructions on long-distance telephone calls and postal service for military personnel]. The Department.

Chicago Style (17th ed.) Citation

United States. War Department. [Instructions on Long-distance Telephone Calls and Postal Service for Military Personnel]. [Washington]: The Department, 1909.

MLA (9th ed.) Citation

United States. War Department. [Instructions on Long-distance Telephone Calls and Postal Service for Military Personnel]. The Department, 1909.