Scientific objectives 

 -  1952 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>60025 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Dewey Class. No.: </label>Az7, J2           CS