. . . "Four thousand things you should know"@en . "Juvenile works"@en . "Juvenile works" . "Štiri tisoč stvari, ki jih morate vedeti"@sl . . "Facts about space, planet Earth, animals, and the human body."@en . . . . . . . "4000 stvari, ki jih morate vedeti : [vesolje, planet Zemlja, živali, telo]"@sl . . . "4000 things you should know"@en . "4000 things you should know" . . . "Štiri tisoč stvari, ki jih tudi morate vedeti"@sl . . "GENERAL KNOWLEDGE ABOUT SPACE, PLANET EARTH, ANIMALS AND THE HUMAN BODY." . . . . "Leksikoni za mladino"@sl . "4000 stvari, ki jih tudi morate vedeti"@sl . "Introduces diverse subjects such as dare matter, black holes, newtron stars, hot spot volcanoes, earth's core, earthquake measurement, the brain synopses, pythons and boas, space and many other subjects." . . . . . "Miscellanea"@en . . . . . . "Knowledge General." . . "Naravoslovje Leksikoni za mladino." . . . .