APA (7th ed.) Citation

United States. Congress. House. Committee on Post Office and Post Roads & ProQuest (Firm). (1928). Safeguarding the mail. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Congress. House. Committee on Post Office and Post Roads and ProQuest (Firm). Safeguarding the Mail. Washington: [publisher not identified], 1928.

MLA (9th ed.) Citation

United States. Congress. House. Committee on Post Office and Post Roads and ProQuest (Firm). Safeguarding the Mail. [publisher not identified], 1928.

Warning: These citations may not always be 100% accurate.