Bird, E.J.  <br/><br/>
How do bears sleep? / 
E.J. Bird. 
 - Minneapolis :  Carolhoda books inc.,  c 1990. 
 - p. :  ill. 
<br/><br/><label>ISBN: </label>0876143842 9780876143841 
<br/><br/><label>Dewey Class. No.: </label>599.74