Reader's Digest Association. <br/><br/>
Great mysteries of the 20th century. 

 - Pleasantville :  Reader's Digest,  1996. 
 - 160  pages. 
 - The eventful 20th century .
<br/><br/><label>ISBN: </label>0276422600 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Curiosities and wonders.<br/>Encyclopedias and dictionaries.<br/>Twentieth century.
<br/><br/><label>LC Class. No.: </label>AG243.G737