Keithly, David M. <br/><br/>
Breakthrough in the Ostpolitik :  the 1971 Quadripartite Agreement / 
David M. Keithly. 
 - Boulder :  Westview Press,  1986. 
 - xi 247 p 
 - Westview special studies in international relations .
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0813371783 (pbk. : alk. paper) : 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Quadripartite Agreement on Berlin (1971) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>World politics--1945-1989.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Berlin (Germany)--Politics and government--1945-1990.<br/>Berlin (Germany)--History--1945-1990.
<br/><br/><label>Dewey Class. No.: </label>450  / KEI