APA (7th ed.) Citation

United States. Post Office Department & ProQuest (Firm). (1841). Clerks Post Office Department, 1840. Letter from the Postmaster General, transmitting a statement of the number and names of the clerks in the Post Office Department during the year 1840, and the compensation of each. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Post Office Department and ProQuest (Firm). Clerks Post Office Department, 1840. Letter from the Postmaster General, Transmitting a Statement of the Number and Names of the Clerks in the Post Office Department During the Year 1840, and the Compensation of Each. Washington: [publisher not identified], 1841.

MLA (9th ed.) Citation

United States. Post Office Department and ProQuest (Firm). Clerks Post Office Department, 1840. Letter from the Postmaster General, Transmitting a Statement of the Number and Names of the Clerks in the Post Office Department During the Year 1840, and the Compensation of Each. [publisher not identified], 1841.