000 00276nam a2200121Ia 4500
008 191004s9999 xx 000 0 und d
082 _a330
_bSKA/E
100 _aSKARIYA, P P
245 0 _aEconomic Systems
260 _bVrindavan Publications ,
300 _a379p
942 _cBK
999 _c2458
_d2458