Gaya APA

Clarck, E, G. (1979). Preventive medicine for the doctor in his community : an epidemiologic approach . New York: Robert E. Krieger Publishing Company.

Gaya MLA

Clarck, E., Gurney. "Preventive medicine for the doctor in his community : an epidemiologic approach". New York: Robert E. Krieger Publishing Company, 1979. Text.