Citazione APA

Machin, D., Campbell, M. J., & Walters, S. J. (2007). Medical statistics: A textbook for the health sciences/4th ed. Willey.

Stile di citazione Chicago

Machin, David, Michael J. Campbell, e Stephen J. Walters. Medical Statistics: A Textbook for the Health Sciences/4th Ed. New Delhi: Willey, 2007.

Citazione MLA

Machin, David, et al. Medical Statistics: A Textbook for the Health Sciences/4th Ed. Willey, 2007.