Conquest, R. e. (1967). Industrial workers in the U.S.S.R. Praeger.
Lua i Stíl Chicago (17ú heag.)Conquest, Robert ed. Industrial Workers in the U.S.S.R. New York: Praeger, 1967.
Lua MLA (9ú heag.)Conquest, Robert ed. Industrial Workers in the U.S.S.R. Praeger, 1967.
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