"Experiments." . . "Experiment" . . "Alltag Technik Experiment Jugendsachbuch." . . . . "Science Miscellanea." . . "Wissen." . . "Technology." . . "Machinery experiments." . . "Ciencia Libros infantiles." . . "Kunst." . . "Przyroda." . . "Technik." . . "Technik" . "Deutsch." . . "Enciclopedias infantiles y juveniles." . . "Naturwissenschaften." . . "Nauki przyrodnicze wydawnictwa dla młodzieży." . . "Enzyklopädie." . . "Berühmte Persönlichkeit." . . "Machinery Juvenile literature." . . "Biologie." . . "Historisches Ereignis." . . "Wissenschaft." . . "Experimenten." . . "Techniek." . . "Science." . . "Technika." . . "Technika wydawnictwa dla młodzieży." . . "Alltag." . . "Kindersachbuch" . . "Nauka wydawnictwa dla młodzieży." . . . . "Gewusst wer" . . . . . . . . "Kindersachbuch" . . . . "Jak to dziata : ksiega pytan i odpowiedzi o nauce, technice i przyrodzie" . "Spannendes Wissen über Technik im Alltag" . . "Gewusst warum" . "Answers questions about how things work, from appliances to scientific instruments to parts of the human body." . "Answers questions about how things work, from appliances to scientific instruments to parts of the human body."@en . "Introduces the world of machines and technology, and provides instructions for experiments that illustrate the scientific principles behind a variety of inventions. Suggested level: primary, intermediate, junior secondary." . . . . . . . . "Answers questions about how things work, from appliances to scientific instruments to parts of the body."@en . . "Jugendsachbuch" . . . . "One hundred ways for parents and kids to explore machine basics, information technology, transportation, household machines, and construction and buildings." . . "Juvenile works"@en . "Juvenile works" . . "Ausgabe" . . . . . "Popular works" . "What is it?" . "How things work : fascinating projects and experiments that reveal the secrets of technology" . . . . "Julian Messner color illustrated question and answer book how things work"@en . . "Jugendbuch" . . . "Gewusst wann" . "Miscellanea"@en . "Miscellanea" . . . . "Gewusst wer : das neue Nachschlagewerk für junge Leute"@es . "Gewusst wann : das neue Nachschlagewerk für junge Leser" . . "Techniek ontdekken" . "Text and illustrations explain the mechanics of how things work, covering such subjects as toaster ovens, helicopters, and roller skates." . "Kinderboeken (vorm)" . . . . . . "Question & answer encyclopedia--why is it?"@en . "Question & answer encyclopedia--why is it?" . . . . "Answers questions in such areas as science, the arts, transportation, space, history, and contemporary culture."@en . "Answers questions in such areas as science, the arts, transportation, space, history, and contemporary culture." . . . . . . . "Julian Messner color illustrated question and answer book"@en . . . . . . . . . "How things work"@en . "How things work" . . . . . . . . "Ketsad poʻalim ha-devarim" . "Simon & Schuster color illustrated question and answer book"@en . . . . . . . . . "How Things Work"@en . . . . . "Gewusst wer : das neue Nachschlagewerk für junge Leser" . "100 ways parents and kids can share the secrets of technology."@en . "Gewusst warum : das neue Nachschlagewerk für junge Leser" . . . "Problems and exercises" . . "How things work : the Simon & Schuster color illustrated question and answer book"@en . . . "Gewusst was" . . . "Simon & Schuster color illustrated question and answer book how things work"@en . . . "How things work : a guide to how human-made and living things function"@en . "Technik im Alltag" . . . . "Gewusst wie : das neue Nachschlagewerk für junge Leser" . . . "How does it work?"@en . "How things work"@pl . . . . . . . . "Gewusst was : das neue Nachschlagewerk für junge Leser" . . . . . "Gewusst wie" . . . . . . "Jak to działa : księga pytań i odpowiedzi o nauce, technice i przyrodzie"@pl . "Presents hundreds of questions and answers about how various things, both mechanical and living, function."@en . . "How does it work?" . "How does it work?"@en . . . . . . . . "Color illustrated question and answer book"@en . "Tecnología Libros infantiles." . .