APA

Friis R. H., Sellers T. A., . (2021). Epidemiology for public health practice. Burlington: Jones & Bartlett Learning.

Chicago

Friis Robert H, Sellers Thomas A, . 2021. Epidemiology for public health practice. Burlington: Jones & Bartlett Learning.

Harvard

Friis R. H., Sellers T. A., . (2021). Epidemiology for public health practice. Burlington: Jones & Bartlett Learning.

MLA

Friis Robert H, Sellers Thomas A, . Epidemiology for public health practice. Burlington: Jones & Bartlett Learning. 2021.