00401nam a2200157Ia 4500008004100000020001500041082001700056100002400073245002700097250000600124260004400130300000800174650001400182650002000196653002700216170901s1995    xx            000 0 und d  a8120303024  a370.15bS49E  aSkinner, Charles E. 0aEducational Psychology  a4  aNew DelhibPrentice Hall of Indiac1995  a755  aEducation  aSocial sciences  aEducational psychology