Merrill, R. M. (2013). Introduction to epidemiology (6th ed.). Jones & Bartlett Learning.
Cita Chicago (17th ed.)Merrill, Ray M. Introduction to Epidemiology. 6th ed. Burlington, Mass.: Jones & Bartlett Learning, 2013.
Cita MLA (8th ed.)Merrill, Ray M. Introduction to Epidemiology. 6th ed. Jones & Bartlett Learning, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.