APA aipamena

George Belch. (2019). Advertising and Promotion (9th ed.). McGraw Hill.

Chicago Style aipamena

George Belch. Advertising and Promotion. 9th ed. Delhi: McGraw Hill, 2019.

MLA aipamena

George Belch. Advertising and Promotion. 9th ed. McGraw Hill, 2019.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.