Inventions and discoveries
Includes bibliographical references and index.
v.1 Agriculture v. 2. Architecture and engineering v. 3. The arts v. 4. Astronomy v. 5. Communication v. 7. Industry and manufacturing v. 8. Mathematics v. 9. Medicine v. 10. Personal and household items v. 11. Transportation v. 12. Warfare
ISBN 9780716603801
Inventions -- Juvenile literature
Discoveries in science
609
Includes bibliographical references and index.
v.1 Agriculture v. 2. Architecture and engineering v. 3. The arts v. 4. Astronomy v. 5. Communication v. 7. Industry and manufacturing v. 8. Mathematics v. 9. Medicine v. 10. Personal and household items v. 11. Transportation v. 12. Warfare
ISBN 9780716603801
Inventions -- Juvenile literature
Discoveries in science
609