Kumar, K. (1978). Prophecy and progress: The sociology of industrial and post-industrial society. Penguin Books.
Čikaški stil citiranja (17. izdanje)Kumar, Krishan. Prophecy and Progress: The Sociology of Industrial and Post-industrial Society. London: Penguin Books, 1978.
MLA način citiranja (9. izdanje)Kumar, Krishan. Prophecy and Progress: The Sociology of Industrial and Post-industrial Society. Penguin Books, 1978.
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