Dyfyniad APA

(2008). Control of communicable disease manual (Nineteenth.). American Public Health Association.

Dyfyniad Arddull Chicago

Control of Communicable Disease Manual. Nineteenth. Washington: American Public Health Association, 2008.

Dyfyniad MLA

Control of Communicable Disease Manual. Nineteenth. American Public Health Association, 2008.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.