Federal motor vehicle safety standard no. 121, air brake systems
Subtitle: hearings before the Subcommittee on Governmental Efficiency and the District of Columbia of the Committee on Governmental Affairs, United States Senate, Ninety-fifth Congress, first session ...
Publisher: U.S. Govt. Print. Off.
Published: 1977
Place of publication: Washington
Language: eng
Subjects: Air-brakes.; Motor vehicles -- Brakes.
Notes: Hearings held December 6, 1977 - Oct. 31, 1978.