Dyfyniad APA

World Health Organisation. (1988). WHO Expert Committee on Biological Standardization. World Health Organisation.

Dyfyniad Arddull Chicago

World Health Organisation. WHO Expert Committee on Biological Standardization. Geneva: World Health Organisation, 1988.

Dyfyniad MLA

World Health Organisation. WHO Expert Committee on Biological Standardization. World Health Organisation, 1988.

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