United States. Post Office Department & ProQuest (Firm). (1881). Report of the Postmaster-General of the United States; being part of the message and documents communicated to the two Houses of Congress at the beginning of the first session of the Forty-seventh Congress. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Post Office Department and ProQuest (Firm). Report of the Postmaster-General of the United States; Being Part of the Message and Documents Communicated to the Two Houses of Congress at the Beginning of the First Session of the Forty-seventh Congress. Washington: [publisher not identified], 1881.
MLA (9th ed.) CitationUnited States. Post Office Department and ProQuest (Firm). Report of the Postmaster-General of the United States; Being Part of the Message and Documents Communicated to the Two Houses of Congress at the Beginning of the First Session of the Forty-seventh Congress. [publisher not identified], 1881.