Katz, D. L., & Jekel, J. F. (2014). Jekel's epidemiology, biostatistics, preventive medicine, and public health (4th ed.). Saunders.
Cita Chicago Style (17a ed.)Katz, David L., y James F. Jekel. Jekel's Epidemiology, Biostatistics, Preventive Medicine, and Public Health. 4th ed. Philadelphia, Pa. ; London: Saunders, 2014.
Cita MLA (8a ed.)Katz, David L., y James F. Jekel. Jekel's Epidemiology, Biostatistics, Preventive Medicine, and Public Health. 4th ed. Saunders, 2014.
Precaución: Estas citas no son 100% exactas.