The Soviet Bloc: Unity and conflict/ 
Brzezinski ,Zbigniew K. 
 - 2nd.ed. 
 - London:  Harvard,  1967. 
 - 599 p. 
<br/><br/><label>ISBN: </label>0674825489 
<br/><br/><label>Dewey Class. No.: </label>320.947  / BRZ/S