SAMPSON, R. J. (1983). The American Economy Analysis Issues Principles Roy J. Sampson And Ira Marienhoff. Houghton Mifflin Company.
Čikaški stil citiranja (17. izdanje)SAMPSON, Roy J. The American Economy Analysis Issues Principles Roy J. Sampson And Ira Marienhoff. Houghton Mifflin Company, 1983.
MLA način citiranja (8. izdanje)SAMPSON, Roy J. The American Economy Analysis Issues Principles Roy J. Sampson And Ira Marienhoff. Houghton Mifflin Company, 1983.
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