Letter dated 25 April 1978 from the Permanent Representative of the Union of Soviet Socialist Republics to the United Nations addressed to the Secretary-General Union of Soviet Socialist Republics Correspondence 1978-04-26 A/S-10/11 EN
Letter dated 7 June 1978 from the Permanent Representative of the Union of Soviet Socialist Republics to the United Nations addressed to the Secretary-General Union of Soviet Socialist Republics Correspondence 1978-06-08 A/S-10/AC.1/18 EN
Letter dated 26 May 1978 from the Minister for Foreign Affairs of the Union of Soviet Socialist Republics addressed to the Secretary-General Union of Soviet Socialist Republics Correspondence 1978-05-26 A/S-10/AC.1/4 EN
