APA aipamena

QUELCH, J. A. (1989). Sales Promotion Management. Prentice-Hall.

Chicago Style aipamena

QUELCH, John A. Sales Promotion Management. Prentice-Hall, 1989.

MLA aipamena

QUELCH, John A. Sales Promotion Management. Prentice-Hall, 1989.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.