000 00534nam a2200193Ia 4500
003 GCL
008 140319s9999 xx 000 0 eng d
040 _aGCL /
_cGCL
082 0 4 _a401.93
_bH P
100 1 _aVIBERG, AKE
245 1 0 _aPROGRESSION AND REGRESSION IN LANGUAGE /
_cVIBERG, AKE
700 1 _aHYLTENSTAM, KENNETH
260 _a[S.N] :
_bCAMBRIDGE UNIVERSITY PRESS ،
_c1993
300 _a487 P
650 0 4 _aLINGUISTIC CHANGE
650 0 4 _aLANGUAGE - ACQUISITION
650 0 4 _aLANGUAGE - ATTRITION
942 _2ddc
_cBK
999 _c25236
_d25236