Skip to main content
Start of main content

House Hearing, 89th Congress - ZIP code system in the United States postal service. Part II: hearings before the Subcommittee on Postal Facilities and Modernization of the Committee on Post Office and Civil Service, House of Representatives, Eighty-ninth Congress, second session, on H.R. 5180, [H.R. 9551], May 3, 4, 11, 19, 1966