Nelson, k. E., Williams, C. M., & Graham, N. M. H. (2000). Infectious disease epidemiology: Theory and practice. Aspen Publishers.
Lua i Stíl Chicago (17ú heag.)Nelson, kenrad E., Carolyn Masters Williams, agus Neil M. H. Graham. Infectious Disease Epidemiology: Theory and Practice. Gaithersburg, Md.: Aspen Publishers, 2000.
Lua MLA (8ú heag.)Nelson, kenrad E., et al. Infectious Disease Epidemiology: Theory and Practice. Aspen Publishers, 2000.
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