Columbia subject headings:
Harvard subject headings:
Airbnb (Firm)
Bed and breakfast accommodations--Economic aspects--Portugal.
Peer-to-peer travel--Economic aspects--Portugal.
Rental housing--Portugal.
Tourism--Portugal.
Princeton subject headings:
Airbnb (Firm)
Bed and breakfast accommodations--Economic aspects--Portugal.
Peer-to-peer travel--Economic aspects--Portugal.
Rental housing--Portugal.
Tourism--Economic aspects--Portugal.