Columbia subject headings:
Civilization--Dictionaries.
English language--Dictionaries.
United States--Civilization--Dictionaries.
Harvard subject headings:
Civilization--Dictionaries.
English language--Dictionaries
United States--Civilization--Dictionaries.
Princeton subject headings:
Civilization--Dictionaries.
Dictionaries.
English language--Dictionaries.
United States--Civilization--Dictionaries.