APA (7th ed.) Citation

(1991). Biological substances: International standards and reference reagents, 1990. World Health Organization.

Chicago Style (17th ed.) Citation

Biological Substances: International Standards and Reference Reagents, 1990. Geneva: World Health Organization, 1991.

MLA (9th ed.) Citation

Biological Substances: International Standards and Reference Reagents, 1990. World Health Organization, 1991.

Warning: These citations may not always be 100% accurate.