Cushman, Frank,  1879- <br/><br/>
Vocational training for airplane mechanics and aircraft engine mechanics: tentative partial analyses of the trades with suggestions relative to the organization and operation of training courses. 

 - [Washington,  U.S. Govt. print. off.,  1930]. 
 - viii, 45 p.  diagrs.  23 cm. 
<br/><br/>With : Granite cutting / George Albert McGarvey. Washington : Govt. Print. Off., 1929. Bound together subsequent to publication. 
<br/><br/><label>LCCN: </label>e  30000081  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mechanics (Persons)<br/>Airplanes.
<br/><br/><label>LC Class. No.: </label>LC1045  / .A25 no. 142