Columbia subject headings:
Learned institutions and societies--United States--Dictionaries.
Research institutes--United States--Dictionaries.
Research libraries--United States--Dictionaries.
Harvard subject headings:
Learned institutions and societies--United States--Dictionaries.
Research institutes--United States--Dictionaries.
Research libraries--United States--Dictionaries.
Princeton subject headings:
Learned institutions and societies--United States--Dictionaries.
Research institutes--United States--Dictionaries.
Research libraries--United States--Dictionaries.