united nation. Discovering the united nations written for the children of the world , let's learn about the united nations and find out how we can make a difference / [Book :] United Nation. - New York : United Nation, 2000. - 47p : ill ; 24cm. All age. Subjects--Topical Terms: United nation-peace. Dewey Class. No.: 341.5 National Library of Medicine Call No.: 341.5 / UD