21. Captive cities: studies in the political economy of cities and regions London : John Wiley & Sons, c1977. SOC333
22. The urban question: a Marxist approach Castells, Manuel, 1942- Cambridge : MIT Press, 1977. HIST460
23. Urban networks in Ching China and Tokugawa Japan Rozman, Gilbert. Princeton, N.J. : Princeton University Press, 1973. HIST318
