Williams, Ralph R., <br/><br/>
The language of aviation in english :  Flying and traffic control / 
Ralph r. Williams 
 - 119 páginas 
 - English for caveers .
<br/><br/><label>ISBN: </label>0883453460 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aeronáutica--Diccionarios<br/>Aeronáutica--Terminologia
<br/><br/><label>LC Class. No.: </label>TL509  / W55