Gordon, R. (1997). Do Tax Rates Encourage Entrepreneurial Activity? International Monetary Fund.
Chicago Style aipamenaGordon, Roger. Do Tax Rates Encourage Entrepreneurial Activity? Washington, D.C.: International Monetary Fund, 1997.
MLA aipamenaGordon, Roger. Do Tax Rates Encourage Entrepreneurial Activity? International Monetary Fund, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.