00399nam a2200157Ia 450000100060000000800410000602000180004704000130006508200200007810000190009824500470011726000410016430000110020554600070021665000180022372045160401s9999    xx            000 0 und d  a9780029290408  cPK-LaUMT  a 150.724bSKI-S  aSkinner, B. F.  aScience and human behaviorcSkinner, B. F.  aNew York,USA:bThe Free Press,c1965  a461 p.  aEN  aLife sciences