Princeton University Press, Princeton NJ, 1976, pp. 924
Especially chapters 21-22 (pp. 659-758). Charts the background to and evolution of the Prague Spring, international reactions to it and mounting Soviet and Warsaw Pact pressure, before outlining the August 1968 invasion and popular and official unarmed resistance to it. Skilling also discusses reasons for the gradual end to resistance and acceptance of the replacement of Dubcek by Husak.