RT Book, Section SR Electronic(1) A1 United Nations YR 2018 T1 Energy, natural resources and cartography T2 Yearbook of the United Nations 2013 PB United Nations SN 9789210578516 DO 10.18356/fb1dccd6-en UL https://www.un-ilibrary.org/content/books/9789210578516s017-c011