United States. Congress. Senate. Committee on Post Offices and Post Roads & ProQuest (Firm). (1937). Permitting further extension of the Air Mail Service. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Committee on Post Offices and Post Roads and ProQuest (Firm). Permitting Further Extension of the Air Mail Service. Washington: [publisher not identified], 1937.
MLA (9th ed.) CitationUnited States. Congress. Senate. Committee on Post Offices and Post Roads and ProQuest (Firm). Permitting Further Extension of the Air Mail Service. [publisher not identified], 1937.
Warning: These citations may not always be 100% accurate.