APA (7th ed.) Citation

Foster, C., Brennan, G., Matthews, A., McAdam, C., Fitzsimons, C., & Mutrie, N. (2011). Recruiting participants to walking intervention studies: A systematic review. BioMed Central.

Chicago Style (17th ed.) Citation

Foster, C., G. Brennan, A. Matthews, C. McAdam, C. Fitzsimons, and N. Mutrie. Recruiting Participants to Walking Intervention Studies: A Systematic Review. BioMed Central, 2011.

MLA (9th ed.) Citation

Foster, C., et al. Recruiting Participants to Walking Intervention Studies: A Systematic Review. BioMed Central, 2011.