APA ציטוט

Duffy, J. (1968). A history of public health in New York City, 1625-1866. Russell Sage Foundation.

Chicago Style (17th ed.) Citation

Duffy, John. A History of Public Health in New York City, 1625-1866. New York: Russell Sage Foundation, 1968.

ציטוט MLA

Duffy, John. A History of Public Health in New York City, 1625-1866. Russell Sage Foundation, 1968.