Lange, O. (1959). Problems of political economy of socialism. People's Publishing House.
Chicago Style (17th ed.) ZitazioaLange, Oskar. Problems of Political Economy of Socialism. New Delhi: People's Publishing House, 1959.
MLA (9th ed.) ZitazioaLange, Oskar. Problems of Political Economy of Socialism. People's Publishing House, 1959.
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