00551nam a2200193Ia 4500008004100000020002200041050001500063050001400078245003900092245007200131260002400203260003400227260000900261300001600270300002600286300001100312500002000323650001400343200601s9999    xx            000 0 und d  a978-1-4262-2052-4  aREF AY 40   b.N38 2019 0aNational Geographic almanac 2020 : 0btrending topics, big ideas in science, photos, maps, facts & more /  aWashington, D.C.  :  bNational Geographic Partners,  c2019  a398 pages :  bcolor illustrations ;  c23 cm.  aIncludes index.  aAlmanacs.