00421nam a2200145Ia 4500008004100000084001300041100002400054245007500078250002000153260003000173260000900203260001300212300001500225500003500240180424s9999    xx            000 0 und d  a155.4 C4  a"Clarkhuff, Robert" 0aDevelopment of Human Resources: Education Psychology and Social Change  a\\197100ENGGPSX  aHolt Rinehart and Winston  b1971  cNew York  axviii+422p  aincludes index and biblioraphy