World Health Organization. (2003). Quality assurance in bacteriology and immunology. World Health Organization.
Chicago-Zitierstil (17. Ausg.)World Health Organization. Quality Assurance in Bacteriology and Immunology. New Delhi: World Health Organization, 2003.
MLA-Zitierstil (8. Ausg.)World Health Organization. Quality Assurance in Bacteriology and Immunology. World Health Organization, 2003.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.