"Unburned hydrocarbons : hearing before a subcommittee of the Committee on Interstate and Foreign Commerce, House of Representatives, eighty-fifth Congress, second session on H. R. 9368, a bill to prohibit the use in commerce of any motor vehicle which discharges unburned hydrocarbons in an amount which is found by the Surgeon General of the Public Health Service to be dangerous to human health, March 7, 1958."; "United States. Congress. House. Committee on Interstate and Foreign Commerce. Special Subcommittee on Traffic Safety."; "Air quality management.", "Hydrocarbons.", "Automobiles--Motors--Exhaust gas--Standards--Law and legislation--United States."; "United States. Congress. House. Committee on Interstate and Foreign Commerce. Special Subcommittee on Traffic Safety."; "1958"; "

Government document.

"; ""; "P842"; "pec"; "Hydrocarbons.", "Air quality management.", "Automobiles--Motors--Exhaust gas--Standards--Law and legislation--United States."; "14256"; .