APA (7th ed.) Citation

United States. Railway Mail Service & ProQuest (Firm). (1877). Letter from the General Superintendent of Railway Mail Service to the Chairman of the Committee on Post-Offices and Post-Roads, in relation to the needs of the postal-railway service. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Railway Mail Service and ProQuest (Firm). Letter from the General Superintendent of Railway Mail Service to the Chairman of the Committee on Post-Offices and Post-Roads, in Relation to the Needs of the Postal-railway Service. Washington: [publisher not identified], 1877.

MLA (9th ed.) Citation

United States. Railway Mail Service and ProQuest (Firm). Letter from the General Superintendent of Railway Mail Service to the Chairman of the Committee on Post-Offices and Post-Roads, in Relation to the Needs of the Postal-railway Service. [publisher not identified], 1877.