Rothman, Stanley
European Society and politics / Stanley Rothman
Bobbs-Merril Company, 1970
 Buku Teks
Gunther, John, 1901-1970
Inside Europe today
Harper & Brothers, 1961
 Buku Teks
Gunther, John, 1901-1970
Inside Europe today
Harper & Brother, 1962
 Buku Teks
Documents On European Government
edited by Steven Muller
Macmillan, 1963
 Buku Teks
Cook, Chris
European political facts 1848 -1918
Macmillan, 1978
 Buku Referensi