Cita APA

Frank, A. G. E., & Gills, B. K. E. (1996). The World system: Five hundred years or five thousand.

Citación estilo Chicago

Frank, Andre Gunder; Ed, y Barry K; Ed Gills. The World System: Five Hundred Years or Five Thousand. London, Routledge, 1996.

Cita MLA

Frank, Andre Gunder; Ed, y Barry K; Ed Gills. The World System: Five Hundred Years or Five Thousand. 1996.