Helicopters
By: Ian Graham ; [illustrators, Aziz Khan, Ron Hayward Associates.
Contributors: Khan, Aziz, ill.; Ron Hayward Associates.
Series: How it works
Publisher: Gloucester Press
Published: 1989
Place of publication: New York
Language: eng
Format: Hardcover
Number of pages: 32
Subjects: Helicopters -- Juvenile literature.; Helicopters.
Other titles: How it works (Gloucester Press)
Description: An introduction to the characteristics and uses of different types of helicopters.