000 00291nam a2200121Ia 4500
008 220201s1980 xx 000 0 eng d
082 _bSWA
100 _aSwan, Michael
245 0 _aPractical english usage
260 _aDelhi
_bOxford University Press
_c1980
300 _a662
942 _2ddc
999 _c24721
_d24721