United States. Congress. Senate. Committee on Commerce. Subcommittee on Surface Transportation & ProQuest (Firm). (1969). Hours of service of railroad employees: Hearings, Ninety-first Congress, first session, on S. 1938 ... September 30, October 13 and 14, 1969. U.S. Govt. Print. Off.
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Committee on Commerce. Subcommittee on Surface Transportation and ProQuest (Firm). Hours of Service of Railroad Employees: Hearings, Ninety-first Congress, First Session, on S. 1938 ... September 30, October 13 and 14, 1969. Washington: U.S. Govt. Print. Off, 1969.
MLA (9th ed.) CitationUnited States. Congress. Senate. Committee on Commerce. Subcommittee on Surface Transportation and ProQuest (Firm). Hours of Service of Railroad Employees: Hearings, Ninety-first Congress, First Session, on S. 1938 ... September 30, October 13 and 14, 1969. U.S. Govt. Print. Off, 1969.