Dyfyniad APA

(1998). Cancer pain relief and palliative care in children. World Health Organisation.

Dyfyniad Arddull Chicago

Cancer Pain Relief and Palliative Care in Children. Geneva: World Health Organisation, 1998.

Dyfyniad MLA

Cancer Pain Relief and Palliative Care in Children. World Health Organisation, 1998.

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