APA način citiranja (7. izdanje)

Percy, S. (2007). Mercenaries: The History of a Norm in International Relations. Oxford University Press.

Čikaški stil citiranja (17. izdanje)

Percy, S. Mercenaries: The History of a Norm in International Relations. Oxford University Press, 2007.

MLA način citiranja (9. izdanje)

Percy, S. Mercenaries: The History of a Norm in International Relations. Oxford University Press, 2007.