Columbia subject headings:
Barcelona (Spain)--Emigration and immigration--21st century.
Emigration and immigration--Social conditions--Spain--Barcelona.
Street vendors--Spain--Barcelona.
Harvard subject headings:
Barcelona (Spain)--Emigration and immigration--21st century.
Emigration and immigration--Social conditions.
Street vendors--Spain--Barcelona.
Princeton subject headings:
Barcelona (Spain)--Emigration and immigration--21st century.
Emigration and immigration--Social conditions.
Street vendors--Spain--Barcelona.