APA aipamena

Journal of World-Systems Research | University Library System, University of Pittsburgh. Cambridge University Press.

Chicago Style aipamena

Journal of World-Systems Research | University Library System, University of Pittsburgh. Cambridge University Press.

MLA aipamena

Journal of World-Systems Research | University Library System, University of Pittsburgh. Cambridge University Press.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.