Science and technology illustrated, Vol.20 

 - Chicago  Encyclopaedia Britannica  1983 
 - 2442-2559 p.   
<br/><br/><label>ISBN: </label>08522294255 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopaedia<br/>Encyclopedia<br/>Science<br/>Technology
<br/><br/><label>Dewey Class. No.: </label>032  / SCI