Samuelson, P., & Nordhaus, W. (2015). Economics (19th ed.). McGraw Hill.
Chicago-čujuhus (17. p.)Samuelson, Paul, juo William Nordhaus. Economics. 19th ed. INDIA: McGraw Hill, 2015.
MLA-čujuhus (9. p.)Samuelson, Paul, juo William Nordhaus. Economics. 19th ed. McGraw Hill, 2015.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.