. . . . . . . "Juvenile works" . "Juvenile works"@en . . . . . "La Ciencia de ayer, de hoy y del mañana" . . . . . . . . . "Upoznajmo nauku" . "Maravilloso mundo de la ciencia" . . . . . . "Tekniikan suursaavutuksia" . "Tekniikan suursaavutuksia"@fi . "La ciencia de ayer, de hoy y del mañana"@es . "La ciencia de ayer, de hoy y del mañana" . "La ciencia de ayer, de hoy y del mañana"@en . . "Understanding Science" . . . "漫游科學世界 = Understanding science" . . "漫遊科學世界 = Understanding science" . "Understanding Science ... Illustrated by Jeanne Bendick"@en . . "slovenski jezik"@sl . . . . . "Man yu k'o hsueh shih chiai = Understanding science" . . "Man you ke xue shi jie" . . . . . "El maravilloso mundo de la ciencia" . . "漫遊科學世界" . . "La ciencia de ayer, de hoy y del mapana"@es . "Discusses the basic principles of the biological and physical science and the ways scientists have discovered and applied these principles." . . . . . . . . . . "Pogled v svet znanosti in tehnike"@sl . "Pogled v svet znanosti in tehnike" . . . . . . . "Understanding Science. New revised edition, etc"@en . . . "Understanding science" . "Understanding science"@en . . . . . . . . . "Man you ke xue shi jian = Understanding science" . . . . . . . . . . "漫游科学世界" . . . . "Understanding science" . . . . . . . . . "Man you ke xue shi chiei = Understanding science" . . . . . . . "Discusses the basic principles of the biological and physical sciences and the ways scientists have discovered and applied these principles."@en . "Discusses the basic principles of the biological and physical sciences and the ways scientists have discovered and applied these principles." . "Ciencia Libros infantiles." . . "Ciència Llibres per a infants" . . "Science." . . "Technology Juvenile Literature." . . "Tehnika Knjige za otroke." . . . . "Ciencia Historia." . . "Prirodne nauke (popularna nauka)" . . "Iznajdbe Knjige za otroke." . . "Tecnología Libros infantiles." . . "Tecnologia Llibres per a infants" . . "Technology." . . "Science Juvenile literature." . .