Newman, S. C. (2001). Biostatistical methods in epidemiology. John Wiley.
Dyfyniad Arddull ChicagoNewman, Stephen C. Biostatistical Methods in Epidemiology. New York: John Wiley, 2001.
Dyfyniad MLANewman, Stephen C. Biostatistical Methods in Epidemiology. John Wiley, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.