Dyfyniad APA

(2002). WHO expert committee on biological standardization: 50th report. World Health Organisation.

Dyfyniad Arddull Chicago

WHO Expert Committee on Biological Standardization: 50th Report. Geneva: World Health Organisation, 2002.

Dyfyniad MLA

WHO Expert Committee on Biological Standardization: 50th Report. World Health Organisation, 2002.

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