GWARTNEY, J. D. (1980). Economics Private And Public Choice James D. Gwartney, Ricard Stroup, Assistance Of A.h. Studenmund. Academic Press.
Lua i Stíl Chicago (17ú heag.)GWARTNEY, James D. Economics Private And Public Choice James D. Gwartney, Ricard Stroup, Assistance Of A.h. Studenmund. Academic Press, 1980.
Lua MLA (8ú heag.)GWARTNEY, James D. Economics Private And Public Choice James D. Gwartney, Ricard Stroup, Assistance Of A.h. Studenmund. Academic Press, 1980.
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