00391nam a2200157Ia 4500008004100000020001500041082001700056100001900073245002700092250000600119260003900125300000800164650001400172650002000186653002700206170901s1976    xx            000 0 und d  a0801609526  a370.15bC31E  aCharles, C. M. 0aEducational Psychology  a2  aSaint LouisbC. V. Mosby Co.c1976  a437  aEducation  aSocial sciences  aEducational psychology