United States. Congress. House. Committee on Post Office and Post Roads & ProQuest (Firm). (1935). Appraisal of pneumatic mail tube systems in New York and Boston. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Congress. House. Committee on Post Office and Post Roads and ProQuest (Firm). Appraisal of Pneumatic Mail Tube Systems in New York and Boston. Washington: [publisher not identified], 1935.
MLA (9th ed.) CitationUnited States. Congress. House. Committee on Post Office and Post Roads and ProQuest (Firm). Appraisal of Pneumatic Mail Tube Systems in New York and Boston. [publisher not identified], 1935.
Warning: These citations may not always be 100% accurate.