Agenda item 77: The urgent need for suspension of nuclear and thermonuclear tests (A/5141 and Add.1, A/C.1/873, A/C.1/874, A/C.1/L.310 and Add.1-4, A/C.1/L.311). Agenda item 90: Question of general and complete disarmament: report of the Conference of the Eighteen-Nation Committee on Disarmament (A/5197, A/5200, DC/203, A/C.1/867, A/C.1/871, A/C.1/L.312).