Eurocommunism and detente
edited by Rudolf L. Tokes
New York University Press, 1978
 Buku Teks
Leonhard, Wolfgang
Eurocommunism : challenge for East and West / Wolfgang Leonhard ; translated by Mark Vecchio
Rinehart and Winston, 1978
 Buku Teks
Skilling, Gordon H.
The governments of communist East Europe
Thomas Y. Crowell, 1966
 Buku Teks
Seton-Watson, Hugh
The East European revolution
Methuen , 1950
 Buku Teks
Turnock, David
The East European economy in context: communism and transition / David Turnock
Routledge, 1997
 Buku Teks