George Belch. (2019). Advertising and Promotion (9th ed.). McGraw Hill.
Chicago Style aipamenaGeorge Belch. Advertising and Promotion. 9th ed. Delhi: McGraw Hill, 2019.
MLA aipamenaGeorge Belch. Advertising and Promotion. 9th ed. McGraw Hill, 2019.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.