APA
Gregory A., . (2008). Planning and managing public relations campaigns. London: Kogan Page.
Chicago
Gregory Anne, . 2008. Planning and managing public relations campaigns. London: Kogan Page.
Harvard
Gregory A., . (2008). Planning and managing public relations campaigns. London: Kogan Page.
MLA
Gregory Anne, . Planning and managing public relations campaigns. London: Kogan Page. 2008.