Cowles encyclopedia of science, industry and technology / 
edited by Benedict A. Leerburger, Jr 
 - New York :  Cowles Education Corp.,  c1967 
 - viii, 510 p. :  ill. (part col.) ;  28 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label> USD 9.95 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--encyclopedias<br/>Technology--Encyclopedias
<br/><br/><label>Dewey Class. No.: </label>503