Werry, Philippa,  1958- <br/><br/>
Who did it? / 
Philippa Werry. 
 - First edition. 
 - 24 pages :  illustrations ;  22 cm. 
 - CSI chapters .
<br/><br/> Includes index. 
<br/><br/> 1774 
<br/><br/><label>ISBN: </label>9781604578720 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Criminal investigation--Juvenile literature.<br/>Forensic sciences--Juvenile literature.
<br/><br/><label>Dewey Class. No.: </label>363.25