Kuhn, T. S. (1977). The essential tension: Selected studies in scientific tradition and change. University of Chicago Press.
Lua i Stíl Chicago (17ú heag.)Kuhn, Thomas S. The Essential Tension: Selected Studies in Scientific Tradition and Change. Chicago: University of Chicago Press, 1977.
Lua MLA (9ú heag.)Kuhn, Thomas S. The Essential Tension: Selected Studies in Scientific Tradition and Change. University of Chicago Press, 1977.
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