Cita APA (7th ed.)

Friis, R. H., & Sellers, T. A. (2009). Epidemiology for public health practice (4th ed.). Jones and Bartlett Publishers.

Cita Chicago (17th ed.)

Friis, Robert H., i Thomas A. Sellers. Epidemiology for Public Health Practice. 4th ed. Sudbury, Mass.: Jones and Bartlett Publishers, 2009.

Cita MLA (8th ed.)

Friis, Robert H., i Thomas A. Sellers. Epidemiology for Public Health Practice. 4th ed. Jones and Bartlett Publishers, 2009.