United States. Post Office Department & ProQuest (Firm). (1877). Letter from the Postmaster General, giving the information required by section 8 of the act approved June 8, 1872. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Post Office Department and ProQuest (Firm). Letter from the Postmaster General, Giving the Information Required by Section 8 of the Act Approved June 8, 1872. Washington: [publisher not identified], 1877.
MLA (9th ed.) CitationUnited States. Post Office Department and ProQuest (Firm). Letter from the Postmaster General, Giving the Information Required by Section 8 of the Act Approved June 8, 1872. [publisher not identified], 1877.
Warning: These citations may not always be 100% accurate.