APA aipamena

Wallerstein, I. M. (2011). The modern world-system. University of California Press.

Chicago Style aipamena

Wallerstein, Immanuel Maurice. The Modern World-system. Berkeley: University of California Press, 2011.

MLA aipamena

Wallerstein, Immanuel Maurice. The Modern World-system. University of California Press, 2011.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.