Cita APA

Doll, R., & Peto, R. (1980). Randomised controlled trials and retrospective controls.

Citación estilo Chicago

Doll, R., and R. Peto. Randomised Controlled Trials and Retrospective Controls. 1980.

Cita MLA

Doll, R., and R. Peto. Randomised Controlled Trials and Retrospective Controls. 1980.

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