Dyfyniad APA

(1998). Manual on the prevention and control of common cancers. World Health Organization.

Dyfyniad Arddull Chicago

Manual on the Prevention and Control of Common Cancers. Geneva, Switzerland: World Health Organization, 1998.

Dyfyniad MLA

Manual on the Prevention and Control of Common Cancers. World Health Organization, 1998.

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