000 00412nam a2200169Ia 4500
008 230515s9999||||xx |||||||||||||| ||und||
040 _aMAIN
041 _aEnglish
082 _a428.8
_bELL M7
100 _aEllis, R.
245 0 _aUnderstanding second language acquisition
_cR. Ellis
250 _a3rd
260 _aNew York
_bOxford
_c1987
300 _a327
650 _aLanguage and languages
942 _cBK
999 _c9470
_d9470