APA (7th ed.) Citation

Kelsey, J. L. (1996). Methods in observational epidemiology (Second edition.). Oxford University Press.

Chicago Style (17th ed.) Citation

Kelsey, Jennifer L. Methods in Observational Epidemiology. Second edition. New York: Oxford University Press, 1996.

MLA (9th ed.) Citation

Kelsey, Jennifer L. Methods in Observational Epidemiology. Second edition. Oxford University Press, 1996.