(1983). An introduction to epidemiologic methods / Harold A. Kahn.
Cita Chicago (17th ed.)An Introduction to Epidemiologic Methods / Harold A. Kahn. 1983.
Cita MLA (9th ed.)An Introduction to Epidemiologic Methods / Harold A. Kahn. 1983.
Atenció: Aquestes cites poden no estar 100% correctes.