APA (7th ed.) Citation

Cipriani, A., & Geddes, J. (2009). What is a randomised controlled trial?

Chicago Style (17th ed.) Citation

Cipriani, A., and J. Geddes. What Is a Randomised Controlled Trial? 2009.

MLA (9th ed.) Citation

Cipriani, A., and J. Geddes. What Is a Randomised Controlled Trial? 2009.

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