United States. Congress. House, ProQuest (Firm), & United States. Congress. House. Committee on Post Office and Post Roads. (1939). Extending the provisions of the 40-hour law to pneumatic-tube-system employees in the Postal Service. [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. Extending the Provisions of the 40-hour Law to Pneumatic-tube-system Employees in the Postal Service. Washington: [publisher not identified], 1939.
MLA (9th ed.) CitationUnited States. Congress. House, et al. Extending the Provisions of the 40-hour Law to Pneumatic-tube-system Employees in the Postal Service. [publisher not identified], 1939.
Warning: These citations may not always be 100% accurate.