Thomas, J. R., Nelson, J. K., & Thomas, J. R. i. (1996). Research methods in physical activity. Human Kinetics.
Lua i Stíl Chicago (17ú heag.)Thomas, Jerry R., Jack K. Nelson, agus Jerry R. introduction Thomas. Research Methods in Physical Activity. Champaign, Ill: Human Kinetics, 1996.
Lua MLA (9ú heag.)Thomas, Jerry R., et al. Research Methods in Physical Activity. Human Kinetics, 1996.
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