The Harper encyclopedia of science /  
Edited by James R. Newman.  
 - 1st ed. 
 - New york :   Harper & Row,  c 1963. 
 - Vols. :   ill. ;   28 cm. 
<br/><br/>V. 2- (E through L) ; 
<br/><br/>334  334 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Encyclopedia.
<br/><br/><label>Dewey Class. No.: </label>503 / H231