World's popular encyclopedia :  A modern compilation of essential facts gathered from all branches of the world's knowledge. 

 - Cleveland ;  New York :  The world syndicate publ. co.,  c1937. 
<br/><br/>Vol. 1 (A-Ath) ; Vol. II (Ath-Bun) ; Vol III (Buo-Coo) ; Vol IV (Coo-Eng) ; Vol V (Eng-Glo) ; Vol. VI (Glo-Irb) ; Vol. VII (Ire-Mac) ; Vol. VIII (Mac-Nor) ; Vol. IX (Nor-Pop) ; Vol X (Pop-Sea) ; Vol. XI (Sea-Tra) ; Vol. XII (Tra-Zym) 
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