(1987). Biological substances: International standards and reference reagents, 1986. World Health Organization.
Citazione stile Chigago Style (17a edizione)Biological Substances: International Standards and Reference Reagents, 1986. Geneva: World Health Organization, 1987.
Citatione MLA (9a ed.)Biological Substances: International Standards and Reference Reagents, 1986. World Health Organization, 1987.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.