Region 2 administrative radio conference on medium wave frequency (MF) broadcasting : hearings before the Subcommittee on International Operations of the Committee on Foreign Affairs, House of Representatives, Ninety-seventh Congress, first session, June 4 and 10, 1981.
United States.Congress.House.Committee on Foreign Affairs.Subcommittee on International Operations.
Washington : USGPO,
1982.
Radio frequency.