The CIA world factbook 2020-2021. Central Intelligence Agency. - New York, NY: Skyhorse Publishing, 2020 - xxxvii, 1135 pages : maps ; 24 cm. ISBN: 9781510758254 Subjects--Topical Terms: --Geography.Political science.World politics.Political statistics. LC Class. No.: G123 Dewey Class. No.: 910 / C333