USA Congress. (1979). UNESCO and freedom of information: Hearing before the Subcommittee on International Organizations of the Committee on Foreign Affairs, House of Representatives, Ninety-sixth Congress, first session, July 19, 1979. U.S. Govt. Print. Off.
Chicago-Zitierstil (17. Ausg.)USA Congress. UNESCO and Freedom of Information: Hearing Before the Subcommittee on International Organizations of the Committee on Foreign Affairs, House of Representatives, Ninety-sixth Congress, First Session, July 19, 1979. Washington: U.S. Govt. Print. Off, 1979.
MLA-Zitierstil (9. Ausg.)USA Congress. UNESCO and Freedom of Information: Hearing Before the Subcommittee on International Organizations of the Committee on Foreign Affairs, House of Representatives, Ninety-sixth Congress, First Session, July 19, 1979. U.S. Govt. Print. Off, 1979.