Columbia subject headings:
Hotels--Sanitation.
Tourism--Health aspects.
Tourist camps, hostels, etc.--Sanitation.
Harvard subject headings:
Bars (Drinking establishments)--Sanitation.
Hotels--Sanitation.
Tourism--Health aspects.
Tourist camps, hostels, etc.--Sanitation.
Princeton subject headings:
Hotels--Sanitation.
Tourism--Health aspects.
Tourist camps, hostels, etc.--Sanitation.