Inkeles, Alex, author
Harvard University Press, 1959
Buku Teks
Sarah Ashwin, editor
Routledge, 2000
Buku Teks
Suvorov, Viktor, author
W.W. Norton, 1983
Buku Teks
USSR, [date of publication not identified]
Buku Teks
Hazard, John N., author
Columbia University Press, 1960
Buku Teks