Reprot 1949-1952 

 - 148p.  cm. 
<br/><br/><label>Standard No.: </label>83971 
<br/><br/><label>Source: </label> Reports 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering
<br/><br/><label>Dewey Class. No.: </label>"X9(D2).271r, GD"