Dyfyniad APA

(1991). International classification of diseases for oncology (2.ed.). World Health Organization.

Dyfyniad Arddull Chicago

International Classification of Diseases for Oncology. 2.ed. Ginebra: World Health Organization, 1991.

Dyfyniad MLA

International Classification of Diseases for Oncology. 2.ed. World Health Organization, 1991.

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