HowStuffWorks, Inc <br/><br/>
What if--? : 75 fascinating questions and answers 

 - New York    Gramercy Books  2007 
 - xiii, 139 p.  ; ill.  Includes index 
<br/><br/><label>ISBN: </label>978-0-517-22984-2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Questions and answers<br/>Science
<br/><br/><label>Dewey Class. No.: </label>C030 W55