APA aipamena

Luper, S. (2001). A guide to ethics. McGraw - Hill.

Chicago Style aipamena

Luper, Steven. A Guide to Ethics. Boston: McGraw - Hill, 2001.

MLA aipamena

Luper, Steven. A Guide to Ethics. McGraw - Hill, 2001.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.