(2008). Control of communicable disease manual (Nineteenth.). American Public Health Association.
Cita Chicago (17th ed.)Control of Communicable Disease Manual. Nineteenth. Washington: American Public Health Association, 2008.
Cita MLA (8th ed.)Control of Communicable Disease Manual. Nineteenth. American Public Health Association, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.