APA način citiranja (7. izdanje)
Keen, M., & Strand, J. (2006). Indirect taxes on international aviation. International Monetary Fund.
Čikaški stil citiranja (17. izdanje)
Keen, Michael, i Jon Strand. Indirect Taxes on International Aviation. [Washington, D.C.?]: International Monetary Fund, 2006.
MLA način citiranja (9. izdanje)
Keen, Michael, i Jon Strand. Indirect Taxes on International Aviation. International Monetary Fund, 2006.
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