PETER, J. P. (2001). Marketing management ed.6. McGraw-Hill.
Chicago Style aipamenaPETER, J. Paul. Marketing Management Ed.6. McGraw-Hill, 2001.
MLA aipamenaPETER, J. Paul. Marketing Management Ed.6. McGraw-Hill, 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.