http://www.rrojasdatabank.org/capital8.htm
http://www.glinx.com/~ryakuga/board/messages/7.html
http://www.unc.edu/depts/diplomat/archives_roll/2001_07-09/book_hunt_modern/book_hunt_modern.html
Dependency Theory
http://www.duke.edu/literature/dependency.htm
http://www.rrojasdatabank.org/foh1.htm
http://www.bized.ac.uk/virtual/dc/copper/theory/th3.htm
http://www.fordham.edu/halsall/mod/wallerstein.html
web.mit.edu/esd.83/www/notebook/WorldSystem.pdf
web.mit.edu/esd.83/www/notebook/
(go to the worldsystem.pdf file)
http://www.marxmail.org/archives/Mar99/worldsystems.htm
Comparison of All 3 Theories
http://www.research-projects.unizh.ch/phil/unit62500/area231/p437.htm