Cita APA (7a ed.)

A. Ross, D., G. Smith, P., & H. Morrow, R. (2015). Chapter 4 Trial design. Oxford University Press.

Cita Chicago Style (17a ed.)

A. Ross, David, Peter G. Smith, y Richard H. Morrow. Chapter 4 Trial Design. Oxford University Press, 2015.

Cita MLA (9a ed.)

A. Ross, David, et al. Chapter 4 Trial Design. Oxford University Press, 2015.