Mc Graw Hill. <br/><br/>
Mc-Graw Hill:Encyclopedia of Science &Technology 

 - 7th. 
 - Newyork.  MGH.  1992 
 - 636p. 
<br/><br/><label>ISBN: </label> RS 374.25 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science-Encyclopedias; Technology-Encyclopedias
<br/><br/><label>Dewey Class. No.: </label>503