Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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