Ritchie, Sebastian. <br/><br/>
Industry and air power :  the expansion of British aircraft production, 1935-41 / 
Sebastian Ritchie. 
 - London :  Frank Cass,  1997 
 - 283 p. :  ill. ;  24 cm. 
<br/><br/>includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0714647241  RM292.13 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aircraft industry--Military aspects--History.--United Kingdom<br/>Airplanes, Military--History.--United Kingdom