Cita APA

Friedman, G. D., & Friedman, G. D. (1974). Primer of epidemiology (3. edition.). New York, New York: McGraw-Hill Book.

Citación estilo Chicago

Friedman, Gary D., y Gary D. Friedman. Primer of Epidemiology. 3. edition. New York, New York: McGraw-Hill Book, 1974.

Cita MLA

Friedman, Gary D., y Gary D. Friedman. Primer of Epidemiology. 3. edition. New York, New York: McGraw-Hill Book, 1974.