Treichel, V., & Mansur, A. (1999). Oman Beyond the Oil Horizon: Policies Toward Sustainable Growth. International Monetary Fund.
Chicago Style aipamenaTreichel, Volker, and Ahsan Mansur. Oman Beyond the Oil Horizon: Policies Toward Sustainable Growth. Washington, D.C.: International Monetary Fund, 1999.
MLA aipamenaTreichel, Volker, and Ahsan Mansur. Oman Beyond the Oil Horizon: Policies Toward Sustainable Growth. International Monetary Fund, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.