Cita APA

Hernán, M. A., Clayton, D., & Keiding, N. (2011). The Simpson's paradox unraveled. Oxford University Press.

Chicago Style Citation

Hernán, Miguel A., David Clayton, i Niels Keiding. The Simpson's Paradox Unraveled. Oxford University Press, 2011.

Cita MLA

Hernán, Miguel A., David Clayton, i Niels Keiding. The Simpson's Paradox Unraveled. Oxford University Press, 2011.