Prouty, Raymond. <br/><br/>
Military helicopter  design and technology. 
by Raymond Prouty. 
 - Surrey  Jane's Defence Data  1989 
 - 140p. 
<br/><br/><label>ISBN: </label>0710605420 
<br/><br/><label>Dewey Class. No.: </label>629.133135  / N89