Dyfyniad APA

Friedman, L. M., Furberg, C. D., & DeMets, D. L. (2010). Fundamentals of clinical trials (Fourth ed.). Springer.

Dyfyniad Arddull Chicago

Friedman, Lawrence M., Curt D. Furberg, and David L. DeMets. Fundamentals of Clinical Trials. Fourth ed. New York, NY: Springer, 2010.

Dyfyniad MLA

Friedman, Lawrence M., et al. Fundamentals of Clinical Trials. Fourth ed. Springer, 2010.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.