World Health Organization. (2011). Handbook for inspection of ships and issuance of ship sanitation certificates. World Health Organization.
Chicago-referens (17:e uppl.)World Health Organization. Handbook for Inspection of Ships and Issuance of Ship Sanitation Certificates. Geneva, Switzerland: World Health Organization, 2011.
MLA-referens (8:e uppl.)World Health Organization. Handbook for Inspection of Ships and Issuance of Ship Sanitation Certificates. World Health Organization, 2011.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.