00330nam a2200133Ia 4500001000500000005001700005008004100022020001500063082001800078100001600096245003800112260002100150650002500171271420261006003639.0120911s9999    xx            000 0 und d  a0074601266  a338.59246 GUP  aGupta, G.S.  aManagerial economics / G.S. Gupta  aTata Mcgraw Hill  aManagerial economics