Hazardous materials transportation Act amendments : joint hearing before the Subcommittee on Surface Transportation and Subcommittee on Aviation of the Committee on Public Works and Transportation, House of Representatives, Ninety-sixth Congress, first session, on H.R. 3502 ... May 7, 1979.
United States.Congress.House.Committee on Public Works and Transportation.Subcommittee on Surface Transportation.
United States.Congress.House.Committee on Public Works and Transportation.Subcommittee on Aviation.
Washington : U.S. Govt. Print. Off.,
1979.
"(96-9)."
Includes bibliographical references (p. 90).
Hazardous substances