APA aipamena

Rego, A. The virtues of leadership. Oxford University Press.

Chicago Style aipamena

Rego, Arménio. The Virtues of Leadership. Oxford University Press.

MLA aipamena

Rego, Arménio. The Virtues of Leadership. Oxford University Press.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.