Describes various types of machines, how they are used, and how they work. Includes fact boxes and suggested activities and projects.
Editions · 5
Hardback
1997 · Lorenz Books
64 pp · EN
9781859675830
Paperback
1999 · Sebastian Kelly
64 pp · EN
9781859675830
Paperback
1999 · Sebastian Kelly
64 pp · EN
9781840814453
Hardback
2001 · Lorenz Books Childrens
64 pp · EN
9780754806523
Paperback
2008 · Lorenz
64 pp · EN
9780754819448
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