APA (7th ed.) Zitazioa

Penn, B. (2004). Be your own PR expert (2nd ed.). Thomson Learning.

Chicago Style (17th ed.) Zitazioa

Penn, Bill. Be Your Own PR Expert. 2nd ed. Australia: Thomson Learning, 2004.

MLA (9th ed.) Zitazioa

Penn, Bill. Be Your Own PR Expert. 2nd ed. Thomson Learning, 2004.