McGraw-Hill encyclopedia of science and technology : An international reference work in twenty volumes including an index 

 - 7 
 - New York, USA  McGraw-Hill Inc.   1992 
<br/><br/><br/>C.S.E.C. 
<br/><br/><label>ISBN: </label>0-07-909206-3 
<br/><br/><label>Source: </label>Reference