Lee Sullivan Hill
1) Jets
Author
Language
English
Description
Introduces jet planes, how they work, and for what purposes they are used.
2) Trains
Author
Language
English
Description
Describes the different cars that make up a train, including those for different kinds of freight and those used by passengers, and explains how trains change directions.
3) Earthmovers
Author
Language
English
Description
Introduces the parts and functions of different kinds of earthmoving machinery.