APA ציטוט

Levin, B. (2015). The futility study—progress over the last decade. Contemp Clin Trials.

Citação norma Chicago

Levin, Bruce. "The Futility Study—progress Over the Last Decade." Contemp Clin Trials 2015.

ציטוט MLA

Levin, Bruce. "The Futility Study—progress Over the Last Decade." Contemp Clin Trials 2015.