World Health Organization. (1997). Manual of laboratory methods for testing of vaccines used in the WHO Expanded Programme on Immunization. World Health Organization.
Chicago-viite (17. p.)World Health Organization. Manual of Laboratory Methods for Testing of Vaccines Used in the WHO Expanded Programme on Immunization. Geneva: World Health Organization, 1997.
MLA-viite (9. p.)World Health Organization. Manual of Laboratory Methods for Testing of Vaccines Used in the WHO Expanded Programme on Immunization. World Health Organization, 1997.
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