The world systems approach. (1969, December 31). In LotsofEssays.com. Retrieved 00:36, July 01, 2025, from https://www.lotsofessays.com/viewpaper/1682515.html
Lots of Essays. "The world systems approach." LotsofEssays.com. LotsofEssays.com, (December 31, 1969). Web. 01 Jul. 2025.
Lots of Essays, "The world systems approach.," LotsofEssays.com, https://www.lotsofessays.com/viewpaper/1682515.html (accessed July 01, 2025)