APA (7e ed.) Bronvermelding

(1991). Biological Substances: International Standards and Reference Reagents. World Health Organization.

Chicago (17e ed.) Bronvermelding

Biological Substances: International Standards and Reference Reagents. Geneva: World Health Organization, 1991.

MLA (9e ed.) Bronvermelding

Biological Substances: International Standards and Reference Reagents. World Health Organization, 1991.

Let op: Deze citaties zijn niet altijd 100% accuraat.