Encyclopedia of Science and Technology.  

 - McGraw-Hill book company  New York  1960 
 - 756p.  fig., photo, table, 
 - Volume  12 .
<br/><br/><label>Nat. Bib. No.: </label>3795 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encylopedias & books of facts
<br/><br/><label>Universal Decimal Class. No.: </label>30  / ENC