APA

Friis R. H., Sellers T. A., . (2009). Epidemiology for public health practice. Sudbury: Jones and Bartlett Publishers.

Chicago

Friis Robert H, Sellers Thomas A, . 2009. Epidemiology for public health practice. Sudbury: Jones and Bartlett Publishers.

Harvard

Friis R. H., Sellers T. A., . (2009). Epidemiology for public health practice. Sudbury: Jones and Bartlett Publishers.

MLA

Friis Robert H, Sellers Thomas A, . Epidemiology for public health practice. Sudbury: Jones and Bartlett Publishers. 2009.