Columbia subject headings:
Harvard subject headings:
Public opinion--El Salvador--San Salvador Metropolitan Area--Statistics.
Public opinion--El Salvador--San Salvador Metropolitan Area.
San Salvador Metropolitan Area (El Salvador)--Social conditions--Public opinion--Statistics.
San Salvador Metropolitan Area (El Salvador)--Social conditions--Public opinion.
Violence--El Salvador--San Salvador Metropolitan Area--Public opinion--Statistics.
Violence--El Salvador--San Salvador Metropolitan Area--Public opinion.
Violence--Public opinion--Statistics.
Violence--Public opinion.
Princeton subject headings:
Public opinion--El Salvador--San Salvador Metropolitan Area--Statistics.
Public opinion--El Salvador--San Salvador Metropolitan Area.
San Salvador Metropolitan Area (El Salvador)--Social conditions--Public opinion--Statistics.
San Salvador Metropolitan Area (El Salvador)--Social conditions--Public opinion.
Statistics.
Violence--El Salvador--San Salvador Metropolitan Area--Public opinion--Statistics.
Violence--El Salvador--San Salvador Metropolitan Area--Public opinion.
Violence--Public opinion--Statistics.
Violence--Public opinion.