United States. Congress. House, ProQuest (Firm), & United States. Congress. House. Committee on Post Office and Post Roads. (1890). Supervisors of post-offices. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Congress. House, ProQuest (Firm), and United States. Congress. House. Committee on Post Office and Post Roads. Supervisors of Post-offices. Washington: [publisher not identified], 1890.
MLA (9th ed.) CitationUnited States. Congress. House, et al. Supervisors of Post-offices. [publisher not identified], 1890.
Warning: These citations may not always be 100% accurate.