Dilemmas : 
The secret / Arthur C. Clarke ; Flowers for Algernon / Daniel Keyes. 
 - Boston :  Houghton Mifflin Co. 
 - 60 p. :  ill. 
 - (Houghton Mifflin Literature) .
<br/><br/><label>ISBN: </label>0395459966 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science fiction