United States. Post Office Department & ProQuest (Firm). (1831). Post office receipts -- 1830. Letter from the Postmaster General, transmitting a statement of the net amount of postage accruing at each post office in each state and territory of the United States, for the year ending the 31st March, 1830. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Post Office Department and ProQuest (Firm). Post Office Receipts -- 1830. Letter from the Postmaster General, Transmitting a Statement of the Net Amount of Postage Accruing at Each Post Office in Each State and Territory of the United States, for the Year Ending the 31st March, 1830. Washington: [publisher not identified], 1831.
MLA (9th ed.) CitationUnited States. Post Office Department and ProQuest (Firm). Post Office Receipts -- 1830. Letter from the Postmaster General, Transmitting a Statement of the Net Amount of Postage Accruing at Each Post Office in Each State and Territory of the United States, for the Year Ending the 31st March, 1830. [publisher not identified], 1831.