United States. Congress. House. Committee on Post Office and Post Roads & ProQuest (Firm). (1924). Government owned and operated air mail service. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Congress. House. Committee on Post Office and Post Roads and ProQuest (Firm). Government Owned and Operated Air Mail Service. Washington: [publisher not identified], 1924.
MLA (9th ed.) CitationUnited States. Congress. House. Committee on Post Office and Post Roads and ProQuest (Firm). Government Owned and Operated Air Mail Service. [publisher not identified], 1924.
Warning: These citations may not always be 100% accurate.