APA (7th ed.) Zitazioa
ebrary, Inc, & Denemark, R. A. (2000). World system history: The social science of long-term change. Routledge.
Chicago Style (17th ed.) Zitazioa
ebrary, Inc, eta Robert Allen Denemark. World System History: The Social Science of Long-term Change. London New York: Routledge, 2000.
MLA (9th ed.) Zitazioa
ebrary, Inc, eta Robert Allen Denemark. World System History: The Social Science of Long-term Change. Routledge, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.