Columbia subject headings:
Spanish language--El Salvador--Idioms.
Spanish language--Foreign elements--Moscow Basin.
Spanish language--Provincialisms--El Salvador--Dictionaries.
Harvard subject headings:
Spanish language--El Salvador--Idioms.
Spanish language--Foreign elements--Nahuatl language.
Spanish language--Provincialisms--El Salvador--Dictionaries.
Princeton subject headings:
Dictionaries.
Spanish language--Provincialisms--El Salvador--Dictionaries.