00322nam a2200133 a 4500041000800000082001800008100002600026245003600052260003700088300001000125650001500135650001500150700002300165  aspa  a159.4bC63m67  aCofer, Charles Norval  aMotivationbtheory and research  aNew YorkbJohn Wiley  Sonsc1967  a958 p  aMOTIVACION  aPSICOLOGIA  aAppley, Moritmer H