| Format: | Build some machines of your own and discover what makes them work - from a popcorn dispenser and a drawing enlarger to a marble-operated clock and a real rocket! |
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| Copyright: | 1993 |
| ISBN: | 0-590-20587-0 |
| Publisher: | New York : Scholastic Inc., |
| Physical Details: | 48 p. : col. pho. |
| Notes: | Includes index |
| Record No.: | 34072 |
| No copies available. |