AC 43.13-1A change three :  acceptable methods, Techniques and practices: AC 43.13-2A: Aircraft alterations 

 - varying pages :  illustrated ;  26 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0891003061 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Airplane--Maintenance and repair<br/>Airplanes
<br/><br/><label>Dewey Class. No.: </label>629.1346  / Ac1