Citação norma APA

Travers, J., Marsh, S., Williams, M., Weatherall, M., Caldwell, B., Shirtcliffe, P., . . . Beasley, R. (2007). External validity of randomised controlled trials in asthma: To whom do the results of the trials apply? BMJ Group.

Citação norma Chicago

Travers, Justin, Suzanne Marsh, Mathew Williams, Mark Weatherall, Brent Caldwell, Philippa Shirtcliffe, Sarah Aldington, and Richard Beasley. External Validity of Randomised Controlled Trials in Asthma: To Whom Do the Results of the Trials Apply? BMJ Group, 2007.

Citação norma MLA

Travers, Justin, et al. External Validity of Randomised Controlled Trials in Asthma: To Whom Do the Results of the Trials Apply? BMJ Group, 2007.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.