Helicopters /
by Darlene Stille.
- Minneapolis, MN : Compass Point Books, c2004.
- 32 p. : ill. (chiefly col.) ; 24 x 29 cm.
- Transportation .
- Stille, Darlene R. Transportation. .
Includes bibliographical references (p. 30) and index.
A simple introduction to different kinds of helicopters and their uses.