United States. Congress. House. Committee on Post Office and Post Roads & ProQuest (Firm). (1868). Letter from the Postmaster General, in answer to a resolution of the House of the 10th instant, relative to the midnight mails between New York and Philadelphia. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Congress. House. Committee on Post Office and Post Roads and ProQuest (Firm). Letter from the Postmaster General, in Answer to a Resolution of the House of the 10th Instant, Relative to the Midnight Mails Between New York and Philadelphia. Washington: [publisher not identified], 1868.
MLA (9th ed.) CitationUnited States. Congress. House. Committee on Post Office and Post Roads and ProQuest (Firm). Letter from the Postmaster General, in Answer to a Resolution of the House of the 10th Instant, Relative to the Midnight Mails Between New York and Philadelphia. [publisher not identified], 1868.