00326nam a2200121Ia 450000500170000000800410001708200140005810000260007224500360009826000440013430000120017865000140019020240821151725.0240821s9999||||xx |||||||||||||| ||und||  a370.1 HAV  aHavighurst, Robert J. 0aHuman development and education  aNew YorkbLongmans, Green anc Co.c1953  axi,338p  aEducation