APA (7th ed.) Zitazioa
Berko, R. M. (1981). Communicating: A social and career focus (2nd ed.). Houghton Mifflin.
Chicago Style (17th ed.) Zitazioa
Berko, Roy M. Communicating: A Social and Career Focus. 2nd ed. Boston: Houghton Mifflin, 1981.
MLA (9th ed.) Zitazioa
Berko, Roy M. Communicating: A Social and Career Focus. 2nd ed. Houghton Mifflin, 1981.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.