Skinner, B. F.  1904- <br/><br/>
Beyond freedom and dignity / 
B.F. Skinner. 
 - Harmondsworth :  Peregrine,  1988. 
 - 227p ;  20 cm. 
<br/><br/> Reprint of 1973 Pelican ed., with new preface and epilogue. 
<br/><br/><label>ISBN: </label>0140552316 9780140552317