Columbia subject headings:
El Salvador--Emigration and immigration--Economic aspects.
El Salvador--Emigration and immigration--Social aspects.
Salvadorans--United States.
United States--Emigration and immigration.
Harvard subject headings:
El Salvador--Emigration and immigration--Economic aspects.
El Salvador--Emigration and immigration--Social aspects.
Salvadorans--United States
United States--Emigration and immigration.
Princeton subject headings:
El Salvador--Emigration and immigration--Economic aspects.
El Salvador--Emigration and immigration--Social aspects.
Salvadorans--United States.
United States--Emigration and immigration.