APA aipamena

Keen, M., Ivanova, A., & Klemm, A. (2005). The Russian Flat Tax Reform. International Monetary Fund.

Chicago Style aipamena

Keen, Michael, Anna Ivanova, and Alexander Klemm. The Russian Flat Tax Reform. Washington, D.C.: International Monetary Fund, 2005.

MLA aipamena

Keen, Michael, et al. The Russian Flat Tax Reform. International Monetary Fund, 2005.