APA (7th ed.) Citation

United States. Post Office Department & ProQuest (Firm). (1837). Clerks -- Post Office Department. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Post Office Department and ProQuest (Firm). Clerks -- Post Office Department. Washington: [publisher not identified], 1837.

MLA (9th ed.) Citation

United States. Post Office Department and ProQuest (Firm). Clerks -- Post Office Department. [publisher not identified], 1837.

Warning: These citations may not always be 100% accurate.