00341nam a2200121Ia 4500008004100000082001500041100001400056245002600070260005600096300001000152630001800162650003900180211109s9999||||xx |||||||||||||| ||und||  a330bDEW-E  aDewett, K 0aElements Of Economics  bJournal of the Mathematical AssociationaAbadc1900  a245p.  xGeneral Stack  aSocial SciencevEconomicsGeneralia