000 00466nam a22001571i 4500
001 19817
010 _a0-13-710047-7
090 _919817
_a19817
100 _a20160923 |||y0rusy50
101 _aeng
200 1 _aPrinciples and Practice in Second Language Acquisition
_fKrashen, S.D.
210 _aLondon
_cPrentice-Hall International
_d1981
676 _a400
676 _a401.9
700 _aKrashen, S.D.
942 _cBOOK
_h400
_vKRA
_m/1//1
_j400 KRA /1//1