APA aipamena

Sampedro, R. (2004). Global issues. New York: Oxford University Press.

Chicago Style aipamena

Sampedro, Ricardo. Global Issues. New York: Oxford University Press, 2004.

MLA aipamena

Sampedro, Ricardo. Global Issues. New York: Oxford University Press, 2004.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.