Skinner, B. F.  1904-1990 <br/><br/>
Walden Two / 
by B. F. Skinner, with an introd. by the author 
 - xvi, 301 páginas ; 
<br/><br/><label>ISBN: </label>0024115215 
<br/><br/><label>LC Class. No.: </label>PS3537.K527  / W35 
<br/><br/><label>Dewey Class. No.: </label>813/.5/4