000 00458nam a2200169Ia 4500
008 170519s9999 xx 000 0 und d
020 _a521-28219-5
041 _aEnglish
082 _a401/WEL/LEA
100 _aGORDON WELLS
245 _aLEARNING THROUGH INTERATION
_bTHE STUDY OF LANGUAGE DEVELOPMENT
260 _bCAMBRIDGE UNIVERSITY PRESS
_aLondon
_c1981
300 _cvii,299p
650 _aLANGUAGE
650 _aPHILOSOPHY & THEORY
942 _cBK
999 _c73117
_d73117