APA način citiranja (7. izdanje)
Helm, D., & Jenkinson, T. (1998). Competition in regulated industries. Oxford University Press.
Čikaški stil citiranja (17. izdanje)
Helm, Dieter, i Tim Jenkinson. Competition in Regulated Industries. Oxford ; New York: Oxford University Press, 1998.
MLA način citiranja (9. izdanje)
Helm, Dieter, i Tim Jenkinson. Competition in Regulated Industries. Oxford University Press, 1998.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.