Cita APA (7a ed.)

Friedman, G. D. (1974). Primer of epidemiology. McGraw-Hill.

Cita Chicago Style (17a ed.)

Friedman, Gary D. Primer of Epidemiology. New York: McGraw-Hill, 1974.

Cita MLA (9a ed.)

Friedman, Gary D. Primer of Epidemiology. McGraw-Hill, 1974.