APA aipamena

Singh Bir. (2006). Sales promotion Management. Anmol.

Chicago Style aipamena

Singh Bir. Sales Promotion Management. New Delhi: Anmol, 2006.

MLA aipamena

Singh Bir. Sales Promotion Management. Anmol, 2006.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.