TY  - BOOK
ED  - United States.
TI  - Federal motor vehicle safety standard no. 121--air brake systems: hearings before the Subcommittee on Governmental Efficiency and the District of Columbia of the Committee on Governmental Affairs, United States Senate, Ninety-fifth Congress, second session
U1  - 343.730944 23
PY  - 1978///
CY  - Washington
PB  - U.S. Print. Off.
KW  - Air-brakes
KW  - Motor vehicles
KW  - Brakes
N1  - Hearings held October 31, 1978
ER  -