Paul, J. R. (1966). Clinical epidemiology (Rev. ed.). University of Chicago Press.
Cita Chicago (17th ed.)Paul, John R. Clinical Epidemiology. Rev. ed. Chicago: University of Chicago Press, 1966.
Cita MLA (8th ed.)Paul, John R. Clinical Epidemiology. Rev. ed. University of Chicago Press, 1966.
Atenció: Aquestes cites poden no estar 100% correctes.