(2004). Public relations: The Practice and the Profession. New York: McGraw-Hill.
Chicago Style aipamenaPublic Relations: The Practice and the Profession. New York: McGraw-Hill, 2004.
MLA aipamenaPublic Relations: The Practice and the Profession. New York: McGraw-Hill, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.