000 00304nam a2200145Ia 4500
008 220919s9999 xx 000 0 und d
245 0 _aEconomics XIIth Commerce
250 _a1st
260 _aNA
260 _bState Board
260 _c2020
300 _a104
650 _aEconomics
942 _c12
999 _c161232
_d161232