APA (7th ed.) Citation

Hilland, T. A., Ridgers, N. D., Stratton, G., & Fairclough, S. J. (2011). Associations Between Selected Demographic, Biological, School Environmental and Physical Education Based Correlates, and Adolescent Physical Activity. Pediatric Exercise Science, 23(1), 61. https://doi.org/10.1123/pes.23.1.61

Chicago Style (17th ed.) Citation

Hilland, Toni A., Nicola D. Ridgers, Gareth Stratton, and Stuart J. Fairclough. "Associations Between Selected Demographic, Biological, School Environmental and Physical Education Based Correlates, and Adolescent Physical Activity." Pediatric Exercise Science 23, no. 1 (2011): 61. https://doi.org/10.1123/pes.23.1.61.

MLA (9th ed.) Citation

Hilland, Toni A., et al. "Associations Between Selected Demographic, Biological, School Environmental and Physical Education Based Correlates, and Adolescent Physical Activity." Pediatric Exercise Science, vol. 23, no. 1, 2011, p. 61, https://doi.org/10.1123/pes.23.1.61.

Warning: These citations may not always be 100% accurate.