Columbia subject headings:
Law librarians--Salaries, etc.--United States--Statistics--Periodicals.
Librarians--Salaries, etc.--United States--Statistics--Periodicals.
Library surveys--United States--Periodicals.
Wage surveys--United States--Periodicals.
Harvard subject headings:
Law librarians--Salaries, etc.--United States--Statistics--Periodicals.
Librarians--Salaries, etc.--United States--Statistics--Periodicals.
Library surveys--United States--Periodicals.
Wage surveys--United States--Periodicals.
Princeton subject headings: