APA način citiranja

Ireland, S. (2010). PET Direct student's book. Cambridge University Press.

Čikaški stil citiranja

Ireland, Sue. PET Direct Student's Book. Cambridge University Press, 2010.

MLA način citiranja

Ireland, Sue. PET Direct Student's Book. Cambridge University Press, 2010.

Upozorenje: Ovi citati možda nisu uvijek 100% točni.