000 00297nam a2200121Ia 4500
008 190719s9999 xx 000 0 und d
100 _aDonald S Watson
245 0 _aPrice theory & its usage
250 _a2nd
260 _aCalcutta
_bScientific Book Agency
_c1968
650 _aEconomics
942 _cBK
999 _c954
_d954