APA-referens (7:e uppl.)

Keen, M., & Baunsgaard, T. (2005). Tax Revenue and (or?) Trade Liberalization. International Monetary Fund.

Chicago-referens (17:e uppl.)

Keen, Michael, och Thomas Baunsgaard. Tax Revenue and (or?) Trade Liberalization. Washington, D.C.: International Monetary Fund, 2005.

MLA-referens (8:e uppl.)

Keen, Michael, och Thomas Baunsgaard. Tax Revenue and (or?) Trade Liberalization. International Monetary Fund, 2005.