APA (7th ed.) Citation

Gaskell, H., Derry, S., Andrew Moore, R., & McQuay, H. (2008). Prevalence of anaemia in older persons: Systematic review.

Chicago Style (17th ed.) Citation

Gaskell, H., S. Derry, R. Andrew Moore, and H. McQuay. Prevalence of Anaemia in Older Persons: Systematic Review. 2008.

MLA (9th ed.) Citation

Gaskell, H., et al. Prevalence of Anaemia in Older Persons: Systematic Review. 2008.