Taylor, Barbara <br/><br/>
I wonder why zips have teeth and other questions about inventions / 
Barbara Taylor 
 - New York  Kingfisher  2012 
 - 32 p.  col. ill. :  28 cm. 
 - I Wonder Why .
<br/><br/><label>ISBN: </label>9780753432723 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Inventions--Juvenile Literature