000 00305nam a2200109Ia 4500
008 170101s1952 xx 000 0 und d
082 _a649 A83G
100 _aAssociation for supervision and curriculum development
245 0 _aGrowing up in an anxious age
260 _bWashington
_c1952
942 _2ddc
_cB
999 _c40547
_d40547