How do helicopters work?
By: by Jennifer Boothroyd
Series: Lightning bolt books: how flight works
Publisher: Lerner Publications Co.
Published: 2013
Place of publication: Minneapolis
Language: eng
ISBN-13: 9780761389668
Subjects: Helicopters; Juvenile literature
Notes: Includes index.

Ages 5-8.
Table of contents: title: What is a helicopter?; title: Up, up, and away; title: Flying through the air; title: Touchdown; title: Diagram; title: Fun facts; title: Glossary.