Peter, J. P. (1989). Marketing management: Knowlegde and skills (2ª ed.). BPI Irwin.
Chicago Style aipamenaPeter, J. Paul. Marketing Management: Knowlegde and Skills. 2ª ed. BPI Irwin, 1989.
MLA aipamenaPeter, J. Paul. Marketing Management: Knowlegde and Skills. 2ª ed. BPI Irwin, 1989.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.