Conculusions and recommendations 

 -  1964 
 - 64p  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering
<br/><br/><label>Dewey Class. No.: </label>X9(D):545p2,N64, K4/GD