The New Popular science encyclopedia of the sciences / 
William B. Sill, executive editor ; Norman Hoss, general editor. Science consultants: Lee D. Peachey [and others]. 
 - New York :  Grosset & Dunlap,  [c1968]. 
 - 757 p.  illus. ;  29 cm. 
 - 503 .
<br/><br/> 1963 ed. published under title: Popular science encyclopedia of the sciences. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Encyclopedias.
<br/><br/><label>Dewey Class. No.: </label>503