Dyfyniad APA

(2002). WHO expert committee on biological standardization: Fifty first report. World Health Organisation.

Dyfyniad Arddull Chicago

WHO Expert Committee on Biological Standardization: Fifty First Report. Singapore: World Health Organisation, 2002.

Dyfyniad MLA

WHO Expert Committee on Biological Standardization: Fifty First Report. World Health Organisation, 2002.

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