Spittaels, H., Foster, C., Oppert, J., Rutter, H., Oja, P., Sjöström, M., & De Bourdeaudhuij, I. (2009). Assessment of environmental correlates of physical activity: Development of a European questionnaire.
Čikaški stil citiranja (17. izdanje)Spittaels, H., C. Foster, J. Oppert, H. Rutter, P. Oja, M. Sjöström, i I. De Bourdeaudhuij. Assessment of Environmental Correlates of Physical Activity: Development of a European Questionnaire. 2009.
MLA način citiranja (9. izdanje)Spittaels, H., et al. Assessment of Environmental Correlates of Physical Activity: Development of a European Questionnaire. 2009.
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