00341nam a2200121Ia 4500003000400000008004100004020001300045040000800058100002300066245007000089260003000159440003000189LDD181029s9999    xx            000 0 und d  a70281017  cLDD  aHenderson, James M 0aMicro economic theoryba mathematical approachcJames M Henderson  aLondonbMcGraw Hillc1980  aEconomics handbook series