Robson, Gary D. ; illustrations by Elijah Brady Clark. <br/><br/>
Who pooped in the park?. 

 - 1st ed 
 - Helena, MT :  Farcountry Press,   c2004. 
 - 48 p.  col. ill.  21 x 24 cm. 
 - Who pooped in the park? .
<br/><br/><label>ISBN: </label>1560372737 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animal tracks--Yellowstone National Park--Juvenile literature.<br/>Tracking and trailing--Yellowstone National Park  --Juvenile literature
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Yellowstone National Park --Juvenile literature--Juvenile literature