000 00442nam a22001577a 4500
999 _c6639
_d6639
008 200928b ||||| |||| 00| 0 eng d
020 _a0521419379
040 _cDDC
082 _222
_a418.007
100 _aNuna,David
245 _aResearch methods in languae learning
260 _anew york
_bcambidge university press
_c1992
300 _axii,248p.
_bill.:
_c22cm
500 _ainclude bibliographical reference and index
942 _2ddc
_cBK