Braverman, Harry, author
Mounthly Review Press, 1974
Buku Teks
Braverman, Harry, author
Monthly Review Press, 1998
Buku Teks
edited by Jack A. Goldstone, Ted Robert Gurr, Farrokh Moshiri
Westview Press, 1991
Buku Teks
Varga, Eugen, 1879-1964, author
Foreign Languages Publishing House, 1961
Buku Teks
Kohn, Hans, author
D. Van Nostrand, 1965
Buku Teks