Duffy, J. (1968). A history of public health in New York City, 1625-1866. Russell Sage Foundation.
Čikaški stil citiranja (17. izdanje)Duffy, John. A History of Public Health in New York City, 1625-1866. New York: Russell Sage Foundation, 1968.
MLA način citiranja (9. izdanje)Duffy, John. A History of Public Health in New York City, 1625-1866. Russell Sage Foundation, 1968.
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