000 00262nam a2200109Ia 4500
008 221102s9999 xx 000 0 und d
100 _aRao, Palle Krishna
245 0 _aWTO text and cases
260 _bExcel book
_aNew Delhi
_c2005
300 _a512 p.
942 _cBK
999 _c4121
_d4121