00262nam a2200109 a 450000500170000002000150001708200170003210000330004924500280008226000240011030000180013420251203091852.0  a8170992362  a330,bD, das  aDas, Kumar B., Das, Sarojini  aExposition to economics  aDelhibMittalc1993  ax, 356p, 22cm