Scooby-Doo:   Howling on the Playground / 
Gail Herman. 
 -  Scholastic,  c2000. 
 - 
<br/><br/>Lex 140 
<br/><br/><br/>in English 
<br/><br/><label>ISBN: </label>9780439161695 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Dogs<br/>Mystery and detective stories.