Dyfyniad APA

(2002). National cancer control programmes (2ed.). World health organization.

Dyfyniad Arddull Chicago

National Cancer Control Programmes. 2ed. Ginebra: World health organization, 2002.

Dyfyniad MLA

National Cancer Control Programmes. 2ed. World health organization, 2002.

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