United States. Congress. House. Committee on Post Office and Post Roads & ProQuest (Firm). (1913). Transportation of mail by aeroplanes. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Congress. House. Committee on Post Office and Post Roads and ProQuest (Firm). Transportation of Mail by Aeroplanes. Washington: [publisher not identified], 1913.
MLA (9th ed.) CitationUnited States. Congress. House. Committee on Post Office and Post Roads and ProQuest (Firm). Transportation of Mail by Aeroplanes. [publisher not identified], 1913.
Warning: These citations may not always be 100% accurate.