Laszlo, E. (1973). The world system: Models, norms, applications. New York: George Braziller.
Trích dẫn kiểu ChicagoLaszlo, Ervin. The World System: Models, Norms, Applications. New York: George Braziller, 1973.
Deismireacht MLALaszlo, Ervin. The World System: Models, Norms, Applications. New York: George Braziller, 1973.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.