APA aipamena

Richardson, J. (2008). Marketing 08/09. McGraw Hill Companies Inc.

Chicago Style aipamena

Richardson, John. Marketing 08/09. McGraw Hill Companies Inc, 2008.

MLA aipamena

Richardson, John. Marketing 08/09. McGraw Hill Companies Inc, 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.