APA aipamena

Wallerstein, I. M. (1974). The modern world-system. Academic Press.

Chicago Style aipamena

Wallerstein, Immanuel Maurice. The Modern World-system. New York: Academic Press, 1974.

MLA aipamena

Wallerstein, Immanuel Maurice. The Modern World-system. Academic Press, 1974.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.