Yancey, A. K. (2010). Instant recess: Building a fit nation 10 minutes at a time. University of California Press.
Citace podle Chicago (17th ed.)Yancey, Antronette K. Instant Recess: Building a Fit Nation 10 Minutes at a Time. Berkeley: University of California Press, 2010.
Citace podle MLA (9th ed.)Yancey, Antronette K. Instant Recess: Building a Fit Nation 10 Minutes at a Time. University of California Press, 2010.
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