Kelsey, J. L. (1996). Methods in observational epidemiology (2nd ed.). Oxford University Press.
Chicago (17e ed.) BronvermeldingKelsey, Jennifer L. Methods in Observational Epidemiology. 2nd ed. New York: Oxford University Press, 1996.
MLA (8e ed.) BronvermeldingKelsey, Jennifer L. Methods in Observational Epidemiology. 2nd ed. Oxford University Press, 1996.
Let op: Deze citaties zijn niet altijd 100% accuraat.