एपीए उद्धरण

Rampey, A. H., Irwin, K. L., Oberle, M. W., Kinchen, S., Lee, N. C., Marsden, A., & Rosero Bixby, L. (1993). The effect of using different reference dates for control exposure measurement on relative risk estimates in a case-control study.

शिकागो स्टाइल उद्धरण

Rampey, Alvin H., Kathleen L. Irwin, Mark W. Oberle, Steven Kinchen, Nancy C. Lee, Anne Marsden, और Luis Rosero Bixby. The Effect of Using Different Reference Dates for Control Exposure Measurement On Relative Risk Estimates in a Case-control Study. 1993.

एमएलए उद्धरण

Rampey, Alvin H., et al. The Effect of Using Different Reference Dates for Control Exposure Measurement On Relative Risk Estimates in a Case-control Study. 1993.