Science and technology illustrated . Vol. 21 

 - Chicago :  Encyclopaedia Britannica,  1984. 
 - Vol. 21, 119p.;  Col.ill.;  29cm 
<br/><br/><label>ISBN: </label>08522294255 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Applied Science<br/>Encyclopedia
<br/><br/><label>Dewey Class. No.: </label>603  / SCI