GROLIER ACADEMIC ENCYCLOPEDIA M 13 

 -  GROLIER INTERNATIONA  1980 
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<br/><br/><label>ISBN: </label>0-7172-2002-8 
<br/><br/><label>Source: </label> 86-198 
<br/><br/><label>Subjects--Topical Terms: </label><br/>TECHNOLOGY(APPLIED SCIENCES)
<br/><br/><label>LC Class. No.: </label>AE5.A23  1980