World Health Organization. (2011). Guide to ship sanitation. World Health Organization.
Citação norma ChicagoWorld Health Organization. Guide to Ship Sanitation. Geneva, Switzerland: World Health Organization, 2011.
Citação norma MLAWorld Health Organization. Guide to Ship Sanitation. World Health Organization, 2011.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.