Sharp, A. M. (2008). Economics of social issues (18th ed.). McGraw-Hill.
Chicago-čujuhus (17. p.)Sharp, Ansel M. Economics of Social Issues. 18th ed. Boston: McGraw-Hill, 2008.
MLA-čujuhus (9. p.)Sharp, Ansel M. Economics of Social Issues. 18th ed. McGraw-Hill, 2008.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.