United States. Congress. House. Committee on Ways and Means & ProQuest (Firm). (1851). Post Office Department. Letter from the Postmaster General, transmitting an estimate of the sums of money expected to be required for the service of the department for the fiscal year commencing July 1, 1851. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Congress. House. Committee on Ways and Means and ProQuest (Firm). Post Office Department. Letter from the Postmaster General, Transmitting an Estimate of the Sums of Money Expected to Be Required for the Service of the Department for the Fiscal Year Commencing July 1, 1851. Washington: [publisher not identified], 1851.
MLA (9th ed.) CitationUnited States. Congress. House. Committee on Ways and Means and ProQuest (Firm). Post Office Department. Letter from the Postmaster General, Transmitting an Estimate of the Sums of Money Expected to Be Required for the Service of the Department for the Fiscal Year Commencing July 1, 1851. [publisher not identified], 1851.