000 00250nam a2200097Ia 4500
008 230915s9999 xx 000 0 und d
050 _aP 128 .C37 T39 1976
100 _aCRYSTAL,DAVID
245 0 _aCHILD LANGUAGE LEARNING AN LINGUISTICS
942 _cBK
999 _c172974
_d172974