Fay, John Foster <br/><br/>
The helicopter:  history, piloting and how it flies / 
By John Fay; illustrated by Lucy Raymond [et al.]. 
 - 0  4th ed. 
 - New York :  Hippocrene Books,  1987. 
 - xiv, 223 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Helicopters