Ehn, B., & Löfgren, O. (2010). The secret world of doing nothing. University of California Press.
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Chicago-čujuhus (17. p.)
Ehn, Billy, juo Orvar Löfgren. The Secret World of Doing Nothing. Berkeley: University of California Press, 2010.
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MLA-čujuhus (9. p.)
Ehn, Billy, juo Orvar Löfgren. The Secret World of Doing Nothing. University of California Press, 2010.
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