Key, Alexander,  1904-1979. <br/><br/>
The case of the vanishing boy /  [electronic resource]  
Alexander Key. 
 - New York :  Pocket Books,  c1979. 
 - 213 p. ;  18 cm. 
<br/><br/><label>ISBN: </label>0671560069 :  $1.75 9780671560065 
<br/><br/><label>LC Class. No.: </label>PZ7.K51  / Ca 1979 
<br/><br/><label>Dewey Class. No.: </label>813/.5/4