Cita APA (7a ed.)
Keen, M., & Strand, J. (2006). Indirect taxes on international aviation. International Monetary Fund.
Cita Chicago Style (17a ed.)
Keen, Michael, y Jon Strand. Indirect Taxes on International Aviation. [Washington, D.C.?]: International Monetary Fund, 2006.
Cita MLA (9a ed.)
Keen, Michael, y Jon Strand. Indirect Taxes on International Aviation. International Monetary Fund, 2006.
Precaución: Estas citas no son 100% exactas.