Lenin, Vladimir I., author
Foreign Languages Publishing House, 1953
Buku Teks
Lowith, Karl, author
Routledge, 1993
Buku Teks
Zeleny, Jindrich, author
Hasta Mitra, 2004
Buku Teks
Lenin, Vladimir I., author
Progress Publishers, 1965
Buku Teks
edited by Terrell Carver
Cambridge University Press, 1991
Buku Teks