British Civil Airworthiness requirements, CAP 468, section : : licensing ; issue 7  [Books]. 
Civil Aviation Authority. 
 - London  Civil Aviation Authority  1976 
 - Pages: 71 
<br/><br/><label>ISBN: </label>0860390098  0.00 
<br/><br/><label>Dewey Class. No.: </label>TL/671.1  / CIV