Norell, S. E. (1992). A Short Course in Epidemiology. Raven Press.
Cita Chicago (17th ed.)Norell, Staffan E. A Short Course in Epidemiology. New York: Raven Press, 1992.
Cita MLA (9th ed.)Norell, Staffan E. A Short Course in Epidemiology. Raven Press, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.