Dyfyniad APA

Steene-Johannessen, J., Anderssen, S. A., Kolle, E., Hansen, B. H., Bratteteig, M., Dalhaug, E. M., . . . Dalene, K. E. (2021). Temporal trends in physical activity levels across more than a decade – a national physical activity surveillance system among Norwegian children and adolescents. Int J Behav Nutr Phys Act.

Dyfyniad Arddull Chicago

Steene-Johannessen, Jostein, et al. "Temporal Trends in Physical Activity Levels Across More Than a Decade – a National Physical Activity Surveillance System Among Norwegian Children and Adolescents." Int J Behav Nutr Phys Act 2021.

Dyfyniad MLA

Steene-Johannessen, Jostein, et al. "Temporal Trends in Physical Activity Levels Across More Than a Decade – a National Physical Activity Surveillance System Among Norwegian Children and Adolescents." Int J Behav Nutr Phys Act 2021.

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