United States. Post Office Department & ProQuest (Firm). (1822). Letter from the postmaster general, transmitting a list of Unproductive Post Roads, For the Year 1821. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Post Office Department and ProQuest (Firm). Letter from the Postmaster General, Transmitting a List of Unproductive Post Roads, For the Year 1821. Washington: [publisher not identified], 1822.
MLA (9th ed.) CitationUnited States. Post Office Department and ProQuest (Firm). Letter from the Postmaster General, Transmitting a List of Unproductive Post Roads, For the Year 1821. [publisher not identified], 1822.
Warning: These citations may not always be 100% accurate.