APA aipamena

Richardson, J. E. (1990). Business ethics 90/91. The Dushkin.

Chicago Style aipamena

Richardson, John E. Business Ethics 90/91. The Dushkin, 1990.

MLA aipamena

Richardson, John E. Business Ethics 90/91. The Dushkin, 1990.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.