Mechanical and technical training for conscripted men (Air division, U. S. signal corps) 

 - Washington,  Govt. print. off.,  1918. 
 - 47 p.  23 cm. 
<br/><br/><label>LCCN: </label>e  18000137  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technical education--United States.
<br/><br/><label>LC Class. No.: </label>LC1045  / .A25 no. 4