RT Book, Section SR Electronic(1) A1 United Nations YR 2020 T1 74/45. Nuclear disarmament T2 United Nations Disarmament Yearbook 2019: Part I PB United Nations SN 9789210050036 DO 10.18356/ef986b9b-en UL https://www.un-ilibrary.org/content/books/9789210050036s003-c022