000			00309nam a2200109Ia 4500
008			220510s1971 xx 000 0 und d
041			_aeng
082			_a407 _bLIV
100			_aRivers,Wilga M, _9778333
245			_aTeaching Foreign Language Skills
260			_aChicago: _bThe university of Chicago press, _c1971
999			_c528543 _d528543