APA (7th ed.) Citation

United States. Congress. House. Committee on Post Office and Post Roads & ProQuest (Firm). (1940). Transportation of foreign mails. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Congress. House. Committee on Post Office and Post Roads and ProQuest (Firm). Transportation of Foreign Mails. Washington: [publisher not identified], 1940.

MLA (9th ed.) Citation

United States. Congress. House. Committee on Post Office and Post Roads and ProQuest (Firm). Transportation of Foreign Mails. [publisher not identified], 1940.

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