00471nam a2200169Ia 4500008004100000040001900041041001200060082002600072245005700098250001200155260003400167300001800201504002000219650001400239700002700253850002100280131103s9999    xx            000 0 und d  aLoreto College  aEnglish  a370.15/SKIbLCBkB/466  aEducational psychologycEdited by Charles E. Skinner  a4th ed.  aDelhibPrentice - Hall c1977  a755p c 22cm.  aIncludes  index  aEducation  aSkinner,Charles E.,ed.  aLCBkB/370.15/SKI