Nelson, G. C. (2004). DiscoverEcon 5.0 Software Tutorial to accompany the fifth edition of Economics, Macroeconomics, Microeconomics (quinta edición.). McGraw-Hill.
Chicago-čujuhus (17. p.)Nelson, Gerald C. DiscoverEcon 5.0 Software Tutorial to Accompany the Fifth Edition of Economics, Macroeconomics, Microeconomics. quinta edición. Boston, MA: McGraw-Hill, 2004.
MLA-čujuhus (9. p.)Nelson, Gerald C. DiscoverEcon 5.0 Software Tutorial to Accompany the Fifth Edition of Economics, Macroeconomics, Microeconomics. quinta edición. McGraw-Hill, 2004.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.