000 00307nam a2200121Ia 4500
005 20250114223541.0
008 250113s9999 xx 000 0 und d
041 _aeng
082 _aPh7361:N6r
245 _aPegs:no. 69-71:apr. 1969
260 _c1969
_bEduca. Rese. Infor. Cent.
_aWashington
365 _cRs.
999 _c130523
_d130523