00298nam a2200109Ia 4500008004100000082001500041100001700056245005500073250000800128260004100136300001100177190710s9999    xx            000 0 und d  a330.1 Ag38  aAgarwal, H S 0aPrincipal of economics : micro and macro economics  a3rd  aAgrabShiva Lal Agarwal & Compc1987  axv,689