Haywood,Roger. (1998). Public relations for marketing professionals. Mac Millan Press Ltd.
Chicago Style aipamenaHaywood,Roger. Public Relations for Marketing Professionals. London: Mac Millan Press Ltd, 1998.
MLA aipamenaHaywood,Roger. Public Relations for Marketing Professionals. Mac Millan Press Ltd, 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.