APA način citiranja (7. izdanje)
Campbell, G. M., & Dugger, J. (2002). Business letters for busy people: Time saving, ready-to-use letters for any occasion. Career Press.
Čikaški stil citiranja (17. izdanje)
Campbell, G. Michael, i Jim Dugger. Business Letters for Busy People: Time Saving, Ready-to-use Letters for Any Occasion. Franklin Lakes, NJ: Career Press, 2002.
MLA način citiranja (9. izdanje)
Campbell, G. Michael, i Jim Dugger. Business Letters for Busy People: Time Saving, Ready-to-use Letters for Any Occasion. Career Press, 2002.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.