Cite
Long term effects of self-determination theory and motivational interviewing in a web-based physical activity intervention: randomized controlled trial.
MLA
Friederichs, Stijn A. H., et al. “Long Term Effects of Self-Determination Theory and Motivational Interviewing in a Web-Based Physical Activity Intervention: Randomized Controlled Trial.” International Journal of Behavioral Nutrition & Physical Activity, vol. 12, Aug. 2015, pp. 1–13. EBSCOhost, https://doi.org/10.1186/s12966-015-0262-9.
APA
Friederichs, S. A. H., Oenema, A., Bolman, C., & Lechner, L. (2015). Long term effects of self-determination theory and motivational interviewing in a web-based physical activity intervention: randomized controlled trial. International Journal of Behavioral Nutrition & Physical Activity, 12, 1–13. https://doi.org/10.1186/s12966-015-0262-9
Chicago
Friederichs, Stijn A. H., Anke Oenema, Catherine Bolman, and Lilian Lechner. 2015. “Long Term Effects of Self-Determination Theory and Motivational Interviewing in a Web-Based Physical Activity Intervention: Randomized Controlled Trial.” International Journal of Behavioral Nutrition & Physical Activity 12 (August): 1–13. doi:10.1186/s12966-015-0262-9.