GWARTNEY, J. D. (1995). Economics Private And Public Choice James D. Gwartney And Richard L. Stroupe. Harcourt Brace College Publish.
Lua i Stíl Chicago (17ú heag.)GWARTNEY, James D. Economics Private And Public Choice James D. Gwartney And Richard L. Stroupe. Harcourt Brace College Publish, 1995.
Lua MLA (8ú heag.)GWARTNEY, James D. Economics Private And Public Choice James D. Gwartney And Richard L. Stroupe. Harcourt Brace College Publish, 1995.
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