Dyfyniad APA

Weekly Mortality Index. Centers for Disease Control & Prevention (CDC).

Dyfyniad Arddull Chicago

Weekly Mortality Index. Centers for Disease Control & Prevention (CDC).

Dyfyniad MLA

Weekly Mortality Index. Centers for Disease Control & Prevention (CDC).

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