Kohr, John R  <br/><br/>
Scientific and technical societies of the United States and Canada 

 - 6th ed.  
 - Washington:   National Academy of Sciences,   1955 
 - 447p.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Scientific 
<br/><br/><label>Subjects--Index Terms: </label>Technical  
<br/><br/><label>Universal Decimal Class. No.: </label>5(07)(061)  / J5