How in the world? 
Reader's Digest Association. 
 - Pleasantville, N.Y. :  Reader's Digest Association,  c1990. 
 - 448 p. :  ill. (some col.) ;  29 cm. 
<br/><br/> At head of title: Reader's digest.  Includes index. 
<br/><br/><label>ISBN: </label>0895773538 9780895773531 
<br/><br/><label>LCCN: </label>90030663  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technology--Miscellanea.<br/>Science--Miscellanea.<br/>Medicine--Miscellanea.<br/>Curiosities and wonders.
<br/><br/><label>LC Class. No.: </label>T47  / .H725 1990 
<br/><br/><label>Dewey Class. No.: </label>600