Skinner, B. F.  1904-1990 <br/><br/>
Walden Dos  [Texto impreso] 
B.F. Skinner 
 - Barcelona  Martínez Roca  1984 
 - 329 p.  20 cm 
 - Libros Fontanella .
<br/><br/><label>ISBN: </label>8427008929  650 pts. 
<br/><br/><label>Nat. Bib. Agency Control No.: </label>bimoBNE19921637568  SpMaBN 
<br/><br/><label>Universal Decimal Class. No.: </label>820(73)-31"19"