Cita APA (7th ed.)

Gordis, L. (2009). Epidemiology (4th ed.). Elsevier/Saunders.

Cita Chicago (17th ed.)

Gordis, Leon. Epidemiology. 4th ed. Philadelphia: Elsevier/Saunders, 2009.

Cita MLA (8th ed.)

Gordis, Leon. Epidemiology. 4th ed. Elsevier/Saunders, 2009.