Pugel, T. (2009). International economics (14th ed.). McGraw-Hill.
Chicago-čujuhus (17. p.)Pugel, Thomas. International Economics. 14th ed. Boston: McGraw-Hill, 2009.
MLA-čujuhus (9. p.)Pugel, Thomas. International Economics. 14th ed. McGraw-Hill, 2009.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.