00421nam a2200157Ia 4500008004100000020001500041082001700056100002500073245004400098250000600142260004600148300000800194650001400202650002000216653002700236170901s1976    xx            000 0 und d  a0471536490  a370.15bL62E  aLindgren, Henry Clay 0aEducational Phychology in The Classroom  a5  aNew YorkbJohn Wiley And Sons, Inc.c1976  a521  aEducation  aSocial sciences  aEducational psychology