Dyfyniad APA

(1994). Division Of Diarrhoeal and Acute Respiratory Disease Control.

Dyfyniad Arddull Chicago

Division Of Diarrhoeal and Acute Respiratory Disease Control. 1994.

Dyfyniad MLA

Division Of Diarrhoeal and Acute Respiratory Disease Control. 1994.

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