World Health Organization. (2010). Quantification addendum: International medical guide for ships (3rd.). World Health Organization.
Chicago-viite (17. p.)World Health Organization. Quantification Addendum: International Medical Guide for Ships. 3rd. Geneva, Switzerland: World Health Organization, 2010.
MLA-viite (8. p.)World Health Organization. Quantification Addendum: International Medical Guide for Ships. 3rd. World Health Organization, 2010.
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