United States. Congress. House. Committee on Public Works and Transportation. Subcommittee on Surface Transportation. (1992). Implementation of the National Minimum Drinking Age Act: Hearing before the Subcommittee on Surface Transportation of the Committee on Public Works and Transportation, House of Representatives, One Hundred Second Congress, second session, October 1, 1992. Washington: U.S. Government Printing Office.

United States. Congress. House. Committee on Public Works and Transportation. Subcommittee on Surface Transportation. Implementation of the National Minimum Drinking Age Act: Hearing Before the Subcommittee On Surface Transportation of the Committee On Public Works and Transportation, House of Representatives, One Hundred Second Congress, Second Session, October 1, 1992. Washington: U.S. Government Printing Office, 1992.

United States. Congress. House. Committee on Public Works and Transportation. Subcommittee on Surface Transportation. Implementation of the National Minimum Drinking Age Act: Hearing Before the Subcommittee On Surface Transportation of the Committee On Public Works and Transportation, House of Representatives, One Hundred Second Congress, Second Session, October 1, 1992. Washington: U.S. Government Printing Office, 1992.