Konigsburg, E. L. <br/><br/>
From the mixed-up files of Mrs. Basil E. Frankweiler. 

 - New York :  Antheneum,  1967. 
 - 162 
<br/><br/><label>ISBN: </label>0-689-20586-4 
<br/><br/><label>LCCN: </label>67-18988