(1987). Biological substances: International standards and reference reagents, 1986. World Health Organization.
Cita Chicago Style (17a ed.)Biological Substances: International Standards and Reference Reagents, 1986. Geneva: World Health Organization, 1987.
Cita MLA (9a ed.)Biological Substances: International Standards and Reference Reagents, 1986. World Health Organization, 1987.
Precaución: Estas citas no son 100% exactas.