APA (7th ed.) Citation

Syddall, H., Simmonds, S., Martin, H., Watson, C., Dennison, E., Cooper, C., & Sayer, A. (2010). Cohort profile: The Hertfordshire Ageing Study (HAS).

Chicago Style (17th ed.) Citation

Syddall, H., S. Simmonds, H. Martin, C. Watson, E. Dennison, C. Cooper, and A. Sayer. Cohort Profile: The Hertfordshire Ageing Study (HAS). 2010.

MLA (9th ed.) Citation

Syddall, H., et al. Cohort Profile: The Hertfordshire Ageing Study (HAS). 2010.