Warner, Gertrude Chandler <br/><br/>
Benny Uncovers a Mystery / 
by Gertrude Chandler Warner; Illustrated by David Cunningham. 
 - Chicago :  Albert Whitman & Company,  1976. 
 - 128 p. ;  20 cm. 
 - The Boxcar Children  #19 .
<br/><br/><label>ISBN: </label>0807506451 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fiction