Taylor, Brian D., author
Cambridge University Press, 2013
Buku Teks
Lenin, Vladimir I., author
Foreign Languages Publishing House, 1963
Buku Teks
Hine, Lewis W., author
Prestel, 2001
Buku Teks
Goldmann, Kjell, author
Routledge, 1996
Buku Teks
edited by Barnett R. Rubin and Jack Snyder
Routledge, 1998
Buku Teks