APA (7th ed.) Citation

Kelsey, J. L., Thompson, W. D., & Evans, A. S. (1986). Methods in observational epidemiology. Oxford University Press.

Chicago Style (17th ed.) Citation

Kelsey, Jennifer L., W. Douglas Thompson, and Alfred S. Evans. Methods in Observational Epidemiology. New York: Oxford University Press, 1986.

MLA (9th ed.) Citation

Kelsey, Jennifer L., et al. Methods in Observational Epidemiology. Oxford University Press, 1986.