(1987). Biological substances: International standards and reference reagents, 1986. World Health Organization.
Citación estilo ChicagoBiological Substances: International Standards and Reference Reagents, 1986. Geneva: World Health Organization, 1987.
Cita MLABiological Substances: International Standards and Reference Reagents, 1986. World Health Organization, 1987.
Warning: These citations may not always be 100% accurate.