World Health Organization. 2011. Guide to ship sanitation. third ed. Geneva: World Health Organization.
Citáce podľa APA (7th ed.)World Health Organization. (2011). Guide to ship sanitation (third ed.). World Health Organization.
Citácia podle Chicago (17th ed.)World Health Organization. Guide to Ship Sanitation. third ed. Geneva: World Health Organization, 2011.
Citácia podľa MLA (8th ed.)World Health Organization. Guide to Ship Sanitation. third ed. World Health Organization, 2011.
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