Sharp, A. M. (2008). Economics of social issues (18th ed.). McGraw-Hill.
Tohutoru Kātū Chicago (17th ed.)Sharp, Ansel M. Economics of Social Issues. 18th ed. Boston: McGraw-Hill, 2008.
Tohutoro MLA (9th ed.)Sharp, Ansel M. Economics of Social Issues. 18th ed. McGraw-Hill, 2008.
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