00443nam a2200157Ia 4500008004100000020001500041082001600056100002000072245004400092260004300136300000800179650003900187650001500226653002200241700002200263170901s1987    xx            000 0 und d  a0669077534  a155.4bW18C  aWard, Betty Ann 0aChildrenbDevelopment and Social Issues  aTorontobD. C. Heath and Companyc1987  a138  aPhilosophy and related disciplines  aPsychology  aChild development  aYoung, Kathryn T.