Breakthrough in the Ostpolitik : the 1971 Quadripartite Agreement - Keithly, David M. (Boulder : Westview Press, 1986)
Includes index.
Keywords: Quadripartite Agreement on Berlin -- (1971); World politics -- 1945-1989.; Berlin (Germany) -- Politics and government -- 1945-1990.; Berlin (Germany) -- History -- 1945-1990.