Roddy Mullin. (2010). Sales Promotion (5.). Kogan Page.
Chicago Style aipamenaRoddy Mullin. Sales Promotion. 5. London: Kogan Page, 2010.
MLA aipamenaRoddy Mullin. Sales Promotion. 5. Kogan Page, 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.