APA (7th ed.) Citation

Doll, R., Peto, R., & Clarke, M. (1999). First publication of an individually randomized trial.

Chicago Style (17th ed.) Citation

Doll, R., R. Peto, and M. Clarke. First Publication of an Individually Randomized Trial. 1999.

MLA (9th ed.) Citation

Doll, R., et al. First Publication of an Individually Randomized Trial. 1999.