Salvato, J. A. (1976). Guide to sanitation in tourist establishments. World Health Organization.
Chicago-referens (17:e uppl.)Salvato, Joseph A. Guide to Sanitation in Tourist Establishments. Ginebra: World Health Organization, 1976.
MLA-referens (9:e uppl.)Salvato, Joseph A. Guide to Sanitation in Tourist Establishments. World Health Organization, 1976.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.